71672840

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{2719}}^1$

素因数の和:3389

約数の個数: 32

約数和(自身を含む): 161568000

約数和(自身を除く): 89895160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1318, 2636, 2719, 3295, 5272, 5438, 6590, 10876, 13180, 13595, 21752, 26360, 27190, 54380, 108760, 1791821, 3583642, 7167284, 8959105, 14334568, 17918210, 35836420, 71672840]

約数ペア:

[(1, 71672840), (2, 35836420), (4, 17918210), (5, 14334568), (8, 8959105), (10, 7167284), (20, 3583642), (40, 1791821), (659, 108760), (1318, 54380), (2636, 27190), (2719, 26360), (3295, 21752), (5272, 13595), (5438, 13180), (6590, 10876)]