20161176520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{64877}}^1$

素因数の和:65362

約数の個数: 64

約数和(自身を含む): 48136880880

約数和(自身を除く): 27975704360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 457, 680, 914, 1828, 2285, 3656, 4570, 7769, 9140, 15538, 18280, 31076, 38845, 62152, 64877, 77690, 129754, 155380, 259508, 310760, 324385, 519016, 648770, 1102909, 1297540, 2205818, 2595080, 4411636, 5514545, 8823272, 11029090, 22058180, 29648789, 44116360, 59297578, 118595156, 148243945, 237190312, 296487890, 504029413, 592975780, 1008058826, 1185951560, 2016117652, 2520147065, 4032235304, 5040294130, 10080588260, 20161176520]

約数ペア:

[(1, 20161176520), (2, 10080588260), (4, 5040294130), (5, 4032235304), (8, 2520147065), (10, 2016117652), (17, 1185951560), (20, 1008058826), (34, 592975780), (40, 504029413), (68, 296487890), (85, 237190312), (136, 148243945), (170, 118595156), (340, 59297578), (457, 44116360), (680, 29648789), (914, 22058180), (1828, 11029090), (2285, 8823272), (3656, 5514545), (4570, 4411636), (7769, 2595080), (9140, 2205818), (15538, 1297540), (18280, 1102909), (31076, 648770), (38845, 519016), (62152, 324385), (64877, 310760), (77690, 259508), (129754, 155380)]