627648320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 168

約数和(自身を含む): 1673745192

約数和(自身を除く): 1046096872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 157, 160, 208, 248, 260, 310, 314, 320, 403, 416, 496, 520, 620, 628, 785, 806, 832, 961, 992, 1040, 1240, 1256, 1570, 1612, 1922, 1984, 2015, 2041, 2080, 2480, 2512, 3140, 3224, 3844, 4030, 4082, 4160, 4805, 4867, 4960, 5024, 6280, 6448, 7688, 8060, 8164, 9610, 9734, 9920, 10048, 10205, 12493, 12560, 12896, 15376, 16120, 16328, 19220, 19468, 20410, 24335, 24986, 25120, 25792, 30752, 32240, 32656, 38440, 38936, 40820, 48670, 49972, 50240, 61504, 62465, 63271, 64480, 65312, 76880, 77872, 81640, 97340, 99944, 124930, 126542, 128960, 130624, 150877, 153760, 155744, 163280, 194680, 199888, 249860, 253084, 301754, 307520, 311488, 316355, 326560, 389360, 399776, 499720, 506168, 603508, 632710, 653120, 754385, 778720, 799552, 999440, 1012336, 1207016, 1265420, 1508770, 1557440, 1961401, 1998880, 2024672, 2414032, 2530840, 3017540, 3922802, 3997760, 4049344, 4828064, 5061680, 6035080, 7845604, 9656128, 9807005, 10123360, 12070160, 15691208, 19614010, 20246720, 24140320, 31382416, 39228020, 48280640, 62764832, 78456040, 125529664, 156912080, 313824160, 627648320]

約数ペア:

[(1, 627648320), (2, 313824160), (4, 156912080), (5, 125529664), (8, 78456040), (10, 62764832), (13, 48280640), (16, 39228020), (20, 31382416), (26, 24140320), (31, 20246720), (32, 19614010), (40, 15691208), (52, 12070160), (62, 10123360), (64, 9807005), (65, 9656128), (80, 7845604), (104, 6035080), (124, 5061680), (130, 4828064), (155, 4049344), (157, 3997760), (160, 3922802), (208, 3017540), (248, 2530840), (260, 2414032), (310, 2024672), (314, 1998880), (320, 1961401), (403, 1557440), (416, 1508770), (496, 1265420), (520, 1207016), (620, 1012336), (628, 999440), (785, 799552), (806, 778720), (832, 754385), (961, 653120), (992, 632710), (1040, 603508), (1240, 506168), (1256, 499720), (1570, 399776), (1612, 389360), (1922, 326560), (1984, 316355), (2015, 311488), (2041, 307520), (2080, 301754), (2480, 253084), (2512, 249860), (3140, 199888), (3224, 194680), (3844, 163280), (4030, 155744), (4082, 153760), (4160, 150877), (4805, 130624), (4867, 128960), (4960, 126542), (5024, 124930), (6280, 99944), (6448, 97340), (7688, 81640), (8060, 77872), (8164, 76880), (9610, 65312), (9734, 64480), (9920, 63271), (10048, 62465), (10205, 61504), (12493, 50240), (12560, 49972), (12896, 48670), (15376, 40820), (16120, 38936), (16328, 38440), (19220, 32656), (19468, 32240), (20410, 30752), (24335, 25792), (24986, 25120)]