309478960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3709}}^1$

素因数の和:3878

約数の個数: 80

約数和(自身を含む): 828072000

約数和(自身を除く): 518593040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 560, 596, 745, 1043, 1192, 1490, 2086, 2384, 2980, 3709, 4172, 5215, 5960, 7418, 8344, 10430, 11920, 14836, 16688, 18545, 20860, 25963, 29672, 37090, 41720, 51926, 59344, 74180, 83440, 103852, 129815, 148360, 207704, 259630, 296720, 415408, 519260, 552641, 1038520, 1105282, 2077040, 2210564, 2763205, 3868487, 4421128, 5526410, 7736974, 8842256, 11052820, 15473948, 19342435, 22105640, 30947896, 38684870, 44211280, 61895792, 77369740, 154739480, 309478960]

約数ペア:

[(1, 309478960), (2, 154739480), (4, 77369740), (5, 61895792), (7, 44211280), (8, 38684870), (10, 30947896), (14, 22105640), (16, 19342435), (20, 15473948), (28, 11052820), (35, 8842256), (40, 7736974), (56, 5526410), (70, 4421128), (80, 3868487), (112, 2763205), (140, 2210564), (149, 2077040), (280, 1105282), (298, 1038520), (560, 552641), (596, 519260), (745, 415408), (1043, 296720), (1192, 259630), (1490, 207704), (2086, 148360), (2384, 129815), (2980, 103852), (3709, 83440), (4172, 74180), (5215, 59344), (5960, 51926), (7418, 41720), (8344, 37090), (10430, 29672), (11920, 25963), (14836, 20860), (16688, 18545)]