64157680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42209}}^1$

素因数の和:42241

約数の個数: 40

約数和(自身を含む): 157021200

約数和(自身を除く): 92863520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42209, 84418, 168836, 211045, 337672, 422090, 675344, 801971, 844180, 1603942, 1688360, 3207884, 3376720, 4009855, 6415768, 8019710, 12831536, 16039420, 32078840, 64157680]

約数ペア:

[(1, 64157680), (2, 32078840), (4, 16039420), (5, 12831536), (8, 8019710), (10, 6415768), (16, 4009855), (19, 3376720), (20, 3207884), (38, 1688360), (40, 1603942), (76, 844180), (80, 801971), (95, 675344), (152, 422090), (190, 337672), (304, 211045), (380, 168836), (760, 84418), (1520, 42209)]