31156560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:525

約数の個数: 120

約数和(自身を含む): 105860040

約数和(自身を除く): 74703480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 109, 120, 144, 180, 218, 240, 327, 360, 397, 436, 545, 654, 720, 794, 872, 981, 1090, 1191, 1308, 1588, 1635, 1744, 1962, 1985, 2180, 2382, 2616, 3176, 3270, 3573, 3924, 3970, 4360, 4764, 4905, 5232, 5955, 6352, 6540, 7146, 7848, 7940, 8720, 9528, 9810, 11910, 13080, 14292, 15696, 15880, 17865, 19056, 19620, 23820, 26160, 28584, 31760, 35730, 39240, 43273, 47640, 57168, 71460, 78480, 86546, 95280, 129819, 142920, 173092, 216365, 259638, 285840, 346184, 389457, 432730, 519276, 649095, 692368, 778914, 865460, 1038552, 1298190, 1557828, 1730920, 1947285, 2077104, 2596380, 3115656, 3461840, 3894570, 5192760, 6231312, 7789140, 10385520, 15578280, 31156560]

約数ペア:

[(1, 31156560), (2, 15578280), (3, 10385520), (4, 7789140), (5, 6231312), (6, 5192760), (8, 3894570), (9, 3461840), (10, 3115656), (12, 2596380), (15, 2077104), (16, 1947285), (18, 1730920), (20, 1557828), (24, 1298190), (30, 1038552), (36, 865460), (40, 778914), (45, 692368), (48, 649095), (60, 519276), (72, 432730), (80, 389457), (90, 346184), (109, 285840), (120, 259638), (144, 216365), (180, 173092), (218, 142920), (240, 129819), (327, 95280), (360, 86546), (397, 78480), (436, 71460), (545, 57168), (654, 47640), (720, 43273), (794, 39240), (872, 35730), (981, 31760), (1090, 28584), (1191, 26160), (1308, 23820), (1588, 19620), (1635, 19056), (1744, 17865), (1962, 15880), (1985, 15696), (2180, 14292), (2382, 13080), (2616, 11910), (3176, 9810), (3270, 9528), (3573, 8720), (3924, 7940), (3970, 7848), (4360, 7146), (4764, 6540), (4905, 6352), (5232, 5955)]