81640225430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1427}}^1\times {\mathrm{4241}}^1$

素因数の和:5765

約数の個数: 64

約数和(自身を含む): 157012369920

約数和(自身を除く): 75372144490

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 1349, 1427, 2698, 2854, 4241, 6745, 7135, 8482, 13490, 14270, 21205, 27113, 42410, 54226, 80579, 101317, 135565, 161158, 202634, 271130, 301111, 402895, 506585, 602222, 805790, 1013170, 1505555, 1925023, 3011110, 3850046, 5721109, 6051907, 9625115, 11442218, 12103814, 19250230, 28605545, 30259535, 57211090, 60519070, 114986233, 229972466, 429685397, 574931165, 859370794, 1149862330, 2148426985, 4296853970, 8164022543, 16328045086, 40820112715, 81640225430]

約数ペア:

[(1, 81640225430), (2, 40820112715), (5, 16328045086), (10, 8164022543), (19, 4296853970), (38, 2148426985), (71, 1149862330), (95, 859370794), (142, 574931165), (190, 429685397), (355, 229972466), (710, 114986233), (1349, 60519070), (1427, 57211090), (2698, 30259535), (2854, 28605545), (4241, 19250230), (6745, 12103814), (7135, 11442218), (8482, 9625115), (13490, 6051907), (14270, 5721109), (21205, 3850046), (27113, 3011110), (42410, 1925023), (54226, 1505555), (80579, 1013170), (101317, 805790), (135565, 602222), (161158, 506585), (202634, 402895), (271130, 301111)]