20921926280

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1\times {\mathrm{32713}}^1$

素因数の和:33054

約数の個数: 64

約数和(自身を含む): 48050323200

約数和(自身を除く): 27128396920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 271, 295, 472, 542, 590, 1084, 1180, 1355, 2168, 2360, 2710, 5420, 10840, 15989, 31978, 32713, 63956, 65426, 79945, 127912, 130852, 159890, 163565, 261704, 319780, 327130, 639560, 654260, 1308520, 1930067, 3860134, 7720268, 8865223, 9650335, 15440536, 17730446, 19300670, 35460892, 38601340, 44326115, 70921784, 77202680, 88652230, 177304460, 354608920, 523048157, 1046096314, 2092192628, 2615240785, 4184385256, 5230481570, 10460963140, 20921926280]

約数ペア:

[(1, 20921926280), (2, 10460963140), (4, 5230481570), (5, 4184385256), (8, 2615240785), (10, 2092192628), (20, 1046096314), (40, 523048157), (59, 354608920), (118, 177304460), (236, 88652230), (271, 77202680), (295, 70921784), (472, 44326115), (542, 38601340), (590, 35460892), (1084, 19300670), (1180, 17730446), (1355, 15440536), (2168, 9650335), (2360, 8865223), (2710, 7720268), (5420, 3860134), (10840, 1930067), (15989, 1308520), (31978, 654260), (32713, 639560), (63956, 327130), (65426, 319780), (79945, 261704), (127912, 163565), (130852, 159890)]