87868240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64609}}^1$

素因数の和:64639

約数の個数: 40

約数和(自身を含む): 216314280

約数和(自身を除く): 128446040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64609, 129218, 258436, 323045, 516872, 646090, 1033744, 1098353, 1292180, 2196706, 2584360, 4393412, 5168720, 5491765, 8786824, 10983530, 17573648, 21967060, 43934120, 87868240]

約数ペア:

[(1, 87868240), (2, 43934120), (4, 21967060), (5, 17573648), (8, 10983530), (10, 8786824), (16, 5491765), (17, 5168720), (20, 4393412), (34, 2584360), (40, 2196706), (68, 1292180), (80, 1098353), (85, 1033744), (136, 646090), (170, 516872), (272, 323045), (340, 258436), (680, 129218), (1360, 64609)]