20172928256

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{21419}}^1$

素因数の和:21731

約数の個数: 72

約数和(自身を含む): 43519785120

約数和(自身を除く): 23346856864

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 283, 416, 566, 832, 1132, 1664, 2264, 3328, 3679, 4528, 7358, 9056, 14716, 18112, 21419, 29432, 36224, 42838, 58864, 72448, 85676, 117728, 171352, 235456, 278447, 342704, 470912, 556894, 685408, 941824, 1113788, 1370816, 2227576, 2741632, 4455152, 5483264, 6061577, 8910304, 12123154, 17820608, 24246308, 35641216, 48492616, 71282432, 78800501, 96985232, 157601002, 193970464, 315202004, 387940928, 630404008, 775881856, 1260808016, 1551763712, 2521616032, 5043232064, 10086464128, 20172928256]

約数ペア:

[(1, 20172928256), (2, 10086464128), (4, 5043232064), (8, 2521616032), (13, 1551763712), (16, 1260808016), (26, 775881856), (32, 630404008), (52, 387940928), (64, 315202004), (104, 193970464), (128, 157601002), (208, 96985232), (256, 78800501), (283, 71282432), (416, 48492616), (566, 35641216), (832, 24246308), (1132, 17820608), (1664, 12123154), (2264, 8910304), (3328, 6061577), (3679, 5483264), (4528, 4455152), (7358, 2741632), (9056, 2227576), (14716, 1370816), (18112, 1113788), (21419, 941824), (29432, 685408), (36224, 556894), (42838, 470912), (58864, 342704), (72448, 278447), (85676, 235456), (117728, 171352)]