78832720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13879}}^1$

素因数の和:13963

約数の個数: 40

約数和(自身を含む): 185880960

約数和(自身を除く): 107048240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13879, 27758, 55516, 69395, 111032, 138790, 222064, 277580, 555160, 985409, 1110320, 1970818, 3941636, 4927045, 7883272, 9854090, 15766544, 19708180, 39416360, 78832720]

約数ペア:

[(1, 78832720), (2, 39416360), (4, 19708180), (5, 15766544), (8, 9854090), (10, 7883272), (16, 4927045), (20, 3941636), (40, 1970818), (71, 1110320), (80, 985409), (142, 555160), (284, 277580), (355, 222064), (568, 138790), (710, 111032), (1136, 69395), (1420, 55516), (2840, 27758), (5680, 13879)]