81520080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10957}}^1$

素因数の和:11004

約数の個数: 80

約数和(自身を含む): 260888064

約数和(自身を除く): 179367984

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 10957, 21914, 32871, 43828, 54785, 65742, 87656, 109570, 131484, 164355, 175312, 219140, 262968, 328710, 339667, 438280, 525936, 657420, 679334, 876560, 1019001, 1314840, 1358668, 1698335, 2038002, 2629680, 2717336, 3396670, 4076004, 5095005, 5434672, 6793340, 8152008, 10190010, 13586680, 16304016, 20380020, 27173360, 40760040, 81520080]

約数ペア:

[(1, 81520080), (2, 40760040), (3, 27173360), (4, 20380020), (5, 16304016), (6, 13586680), (8, 10190010), (10, 8152008), (12, 6793340), (15, 5434672), (16, 5095005), (20, 4076004), (24, 3396670), (30, 2717336), (31, 2629680), (40, 2038002), (48, 1698335), (60, 1358668), (62, 1314840), (80, 1019001), (93, 876560), (120, 679334), (124, 657420), (155, 525936), (186, 438280), (240, 339667), (248, 328710), (310, 262968), (372, 219140), (465, 175312), (496, 164355), (620, 131484), (744, 109570), (930, 87656), (1240, 65742), (1488, 54785), (1860, 43828), (2480, 32871), (3720, 21914), (7440, 10957)]