78690400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 144

約数和(自身を含む): 209986560

約数和(自身を除く): 131296160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 32, 38, 40, 50, 62, 76, 80, 95, 100, 124, 152, 155, 160, 167, 190, 200, 248, 304, 310, 334, 380, 400, 475, 496, 589, 608, 620, 668, 760, 775, 800, 835, 950, 992, 1178, 1240, 1336, 1520, 1550, 1670, 1900, 2356, 2480, 2672, 2945, 3040, 3100, 3173, 3340, 3800, 4175, 4712, 4960, 5177, 5344, 5890, 6200, 6346, 6680, 7600, 8350, 9424, 10354, 11780, 12400, 12692, 13360, 14725, 15200, 15865, 16700, 18848, 20708, 23560, 24800, 25384, 25885, 26720, 29450, 31730, 33400, 41416, 47120, 50768, 51770, 58900, 63460, 66800, 79325, 82832, 94240, 98363, 101536, 103540, 117800, 126920, 129425, 133600, 158650, 165664, 196726, 207080, 235600, 253840, 258850, 317300, 393452, 414160, 471200, 491815, 507680, 517700, 634600, 786904, 828320, 983630, 1035400, 1269200, 1573808, 1967260, 2070800, 2459075, 2538400, 3147616, 3934520, 4141600, 4918150, 7869040, 9836300, 15738080, 19672600, 39345200, 78690400]

約数ペア:

[(1, 78690400), (2, 39345200), (4, 19672600), (5, 15738080), (8, 9836300), (10, 7869040), (16, 4918150), (19, 4141600), (20, 3934520), (25, 3147616), (31, 2538400), (32, 2459075), (38, 2070800), (40, 1967260), (50, 1573808), (62, 1269200), (76, 1035400), (80, 983630), (95, 828320), (100, 786904), (124, 634600), (152, 517700), (155, 507680), (160, 491815), (167, 471200), (190, 414160), (200, 393452), (248, 317300), (304, 258850), (310, 253840), (334, 235600), (380, 207080), (400, 196726), (475, 165664), (496, 158650), (589, 133600), (608, 129425), (620, 126920), (668, 117800), (760, 103540), (775, 101536), (800, 98363), (835, 94240), (950, 82832), (992, 79325), (1178, 66800), (1240, 63460), (1336, 58900), (1520, 51770), (1550, 50768), (1670, 47120), (1900, 41416), (2356, 33400), (2480, 31730), (2672, 29450), (2945, 26720), (3040, 25885), (3100, 25384), (3173, 24800), (3340, 23560), (3800, 20708), (4175, 18848), (4712, 16700), (4960, 15865), (5177, 15200), (5344, 14725), (5890, 13360), (6200, 12692), (6346, 12400), (6680, 11780), (7600, 10354), (8350, 9424)]