8542840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{739}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 20446200

約数和(自身を除く): 11903360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 739, 1156, 1445, 1478, 2312, 2890, 2956, 3695, 5780, 5912, 7390, 11560, 12563, 14780, 25126, 29560, 50252, 62815, 100504, 125630, 213571, 251260, 427142, 502520, 854284, 1067855, 1708568, 2135710, 4271420, 8542840]

約数ペア:

[(1, 8542840), (2, 4271420), (4, 2135710), (5, 1708568), (8, 1067855), (10, 854284), (17, 502520), (20, 427142), (34, 251260), (40, 213571), (68, 125630), (85, 100504), (136, 62815), (170, 50252), (289, 29560), (340, 25126), (578, 14780), (680, 12563), (739, 11560), (1156, 7390), (1445, 5912), (1478, 5780), (2312, 3695), (2890, 2956)]