20645928

素因数分解:

$2^3\times 3^4\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:380

約数の個数: 80

約数和(自身を含む): 58486560

約数和(自身を除く): 37840632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 151, 162, 211, 216, 302, 324, 422, 453, 604, 633, 648, 844, 906, 1208, 1266, 1359, 1688, 1812, 1899, 2532, 2718, 3624, 3798, 4077, 5064, 5436, 5697, 7596, 8154, 10872, 11394, 12231, 15192, 16308, 17091, 22788, 24462, 31861, 32616, 34182, 45576, 48924, 63722, 68364, 95583, 97848, 127444, 136728, 191166, 254888, 286749, 382332, 573498, 764664, 860247, 1146996, 1720494, 2293992, 2580741, 3440988, 5161482, 6881976, 10322964, 20645928]

約数ペア:

[(1, 20645928), (2, 10322964), (3, 6881976), (4, 5161482), (6, 3440988), (8, 2580741), (9, 2293992), (12, 1720494), (18, 1146996), (24, 860247), (27, 764664), (36, 573498), (54, 382332), (72, 286749), (81, 254888), (108, 191166), (151, 136728), (162, 127444), (211, 97848), (216, 95583), (302, 68364), (324, 63722), (422, 48924), (453, 45576), (604, 34182), (633, 32616), (648, 31861), (844, 24462), (906, 22788), (1208, 17091), (1266, 16308), (1359, 15192), (1688, 12231), (1812, 11394), (1899, 10872), (2532, 8154), (2718, 7596), (3624, 5697), (3798, 5436), (4077, 5064)]