81521010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:584

約数の個数: 96

約数和(自身を含む): 222842880

約数和(自身を除く): 141321870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 61, 62, 90, 93, 122, 155, 183, 186, 279, 305, 310, 366, 465, 479, 549, 558, 610, 915, 930, 958, 1098, 1395, 1437, 1830, 1891, 2395, 2745, 2790, 2874, 3782, 4311, 4790, 5490, 5673, 7185, 8622, 9455, 11346, 14370, 14849, 17019, 18910, 21555, 28365, 29219, 29698, 34038, 43110, 44547, 56730, 58438, 74245, 85095, 87657, 89094, 133641, 146095, 148490, 170190, 175314, 222735, 262971, 267282, 292190, 438285, 445470, 525942, 668205, 876570, 905789, 1314855, 1336410, 1811578, 2629710, 2717367, 4528945, 5434734, 8152101, 9057890, 13586835, 16304202, 27173670, 40760505, 81521010]

約数ペア:

[(1, 81521010), (2, 40760505), (3, 27173670), (5, 16304202), (6, 13586835), (9, 9057890), (10, 8152101), (15, 5434734), (18, 4528945), (30, 2717367), (31, 2629710), (45, 1811578), (61, 1336410), (62, 1314855), (90, 905789), (93, 876570), (122, 668205), (155, 525942), (183, 445470), (186, 438285), (279, 292190), (305, 267282), (310, 262971), (366, 222735), (465, 175314), (479, 170190), (549, 148490), (558, 146095), (610, 133641), (915, 89094), (930, 87657), (958, 85095), (1098, 74245), (1395, 58438), (1437, 56730), (1830, 44547), (1891, 43110), (2395, 34038), (2745, 29698), (2790, 29219), (2874, 28365), (3782, 21555), (4311, 18910), (4790, 17019), (5490, 14849), (5673, 14370), (7185, 11346), (8622, 9455)]