31807320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{661}}^1$

素因数の和:1076

約数の個数: 64

約数和(自身を含む): 95804640

約数和(自身を除く): 63997320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 661, 802, 1203, 1322, 1604, 1983, 2005, 2406, 2644, 3208, 3305, 3966, 4010, 4812, 5288, 6015, 6610, 7932, 8020, 9624, 9915, 12030, 13220, 15864, 16040, 19830, 24060, 26440, 39660, 48120, 79320, 265061, 530122, 795183, 1060244, 1325305, 1590366, 2120488, 2650610, 3180732, 3975915, 5301220, 6361464, 7951830, 10602440, 15903660, 31807320]

約数ペア:

[(1, 31807320), (2, 15903660), (3, 10602440), (4, 7951830), (5, 6361464), (6, 5301220), (8, 3975915), (10, 3180732), (12, 2650610), (15, 2120488), (20, 1590366), (24, 1325305), (30, 1060244), (40, 795183), (60, 530122), (120, 265061), (401, 79320), (661, 48120), (802, 39660), (1203, 26440), (1322, 24060), (1604, 19830), (1983, 16040), (2005, 15864), (2406, 13220), (2644, 12030), (3208, 9915), (3305, 9624), (3966, 8020), (4010, 7932), (4812, 6610), (5288, 6015)]