71398840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{11821}}^1$

素因数の和:11983

約数の個数: 32

約数和(自身を含む): 161724960

約数和(自身を除く): 90326120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 11821, 23642, 47284, 59105, 94568, 118210, 236420, 472840, 1784971, 3569942, 7139884, 8924855, 14279768, 17849710, 35699420, 71398840]

約数ペア:

[(1, 71398840), (2, 35699420), (4, 17849710), (5, 14279768), (8, 8924855), (10, 7139884), (20, 3569942), (40, 1784971), (151, 472840), (302, 236420), (604, 118210), (755, 94568), (1208, 59105), (1510, 47284), (3020, 23642), (6040, 11821)]