20104603600

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:678

約数の個数: 240

約数和(自身を含む): 52475212800

約数和(自身を除く): 32370609200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 31, 40, 46, 50, 62, 80, 92, 100, 115, 124, 155, 157, 184, 200, 230, 248, 310, 314, 368, 400, 449, 460, 496, 575, 620, 628, 713, 775, 785, 898, 920, 1150, 1240, 1256, 1426, 1550, 1570, 1796, 1840, 2245, 2300, 2480, 2512, 2852, 3100, 3140, 3565, 3592, 3611, 3925, 4490, 4600, 4867, 5704, 6200, 6280, 7130, 7184, 7222, 7850, 8980, 9200, 9734, 10327, 11225, 11408, 12400, 12560, 13919, 14260, 14444, 15700, 17825, 17960, 18055, 19468, 20654, 22450, 24335, 27838, 28520, 28888, 31400, 35650, 35920, 36110, 38936, 41308, 44900, 48670, 51635, 55676, 57040, 57776, 62800, 69595, 70493, 71300, 72220, 77872, 82616, 89800, 90275, 97340, 103270, 111352, 111941, 121675, 139190, 140986, 142600, 144440, 165232, 179600, 180550, 194680, 206540, 222704, 223882, 243350, 258175, 278380, 281972, 285200, 288880, 320137, 347975, 352465, 361100, 389360, 413080, 447764, 486700, 516350, 556760, 559705, 563944, 640274, 695950, 704930, 722200, 826160, 895528, 973400, 1032700, 1113520, 1119410, 1127888, 1280548, 1391900, 1409860, 1444400, 1600685, 1621339, 1762325, 1791056, 1946800, 2065400, 2185283, 2238820, 2561096, 2783800, 2798525, 2819720, 3201370, 3242678, 3524650, 4130800, 4370566, 4477640, 5122192, 5567600, 5597050, 5639440, 6402740, 6485356, 7049300, 8003425, 8106695, 8741132, 8955280, 10926415, 11194100, 12805480, 12970712, 14098600, 16006850, 16213390, 17482264, 21852830, 22388200, 25610960, 25941424, 28197200, 32013700, 32426780, 34964528, 40533475, 43705660, 44776400, 50261509, 54632075, 64027400, 64853560, 81066950, 87411320, 100523018, 109264150, 128054800, 129707120, 162133900, 174822640, 201046036, 218528300, 251307545, 324267800, 402092072, 437056600, 502615090, 648535600, 804184144, 874113200, 1005230180, 1256537725, 2010460360, 2513075450, 4020920720, 5026150900, 10052301800, 20104603600]

約数ペア:

[(1, 20104603600), (2, 10052301800), (4, 5026150900), (5, 4020920720), (8, 2513075450), (10, 2010460360), (16, 1256537725), (20, 1005230180), (23, 874113200), (25, 804184144), (31, 648535600), (40, 502615090), (46, 437056600), (50, 402092072), (62, 324267800), (80, 251307545), (92, 218528300), (100, 201046036), (115, 174822640), (124, 162133900), (155, 129707120), (157, 128054800), (184, 109264150), (200, 100523018), (230, 87411320), (248, 81066950), (310, 64853560), (314, 64027400), (368, 54632075), (400, 50261509), (449, 44776400), (460, 43705660), (496, 40533475), (575, 34964528), (620, 32426780), (628, 32013700), (713, 28197200), (775, 25941424), (785, 25610960), (898, 22388200), (920, 21852830), (1150, 17482264), (1240, 16213390), (1256, 16006850), (1426, 14098600), (1550, 12970712), (1570, 12805480), (1796, 11194100), (1840, 10926415), (2245, 8955280), (2300, 8741132), (2480, 8106695), (2512, 8003425), (2852, 7049300), (3100, 6485356), (3140, 6402740), (3565, 5639440), (3592, 5597050), (3611, 5567600), (3925, 5122192), (4490, 4477640), (4600, 4370566), (4867, 4130800), (5704, 3524650), (6200, 3242678), (6280, 3201370), (7130, 2819720), (7184, 2798525), (7222, 2783800), (7850, 2561096), (8980, 2238820), (9200, 2185283), (9734, 2065400), (10327, 1946800), (11225, 1791056), (11408, 1762325), (12400, 1621339), (12560, 1600685), (13919, 1444400), (14260, 1409860), (14444, 1391900), (15700, 1280548), (17825, 1127888), (17960, 1119410), (18055, 1113520), (19468, 1032700), (20654, 973400), (22450, 895528), (24335, 826160), (27838, 722200), (28520, 704930), (28888, 695950), (31400, 640274), (35650, 563944), (35920, 559705), (36110, 556760), (38936, 516350), (41308, 486700), (44900, 447764), (48670, 413080), (51635, 389360), (55676, 361100), (57040, 352465), (57776, 347975), (62800, 320137), (69595, 288880), (70493, 285200), (71300, 281972), (72220, 278380), (77872, 258175), (82616, 243350), (89800, 223882), (90275, 222704), (97340, 206540), (103270, 194680), (111352, 180550), (111941, 179600), (121675, 165232), (139190, 144440), (140986, 142600)]