29478260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{881}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 71124480

約数和(自身を除く): 41646220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 881, 956, 1195, 1673, 1762, 2390, 3346, 3524, 4405, 4780, 6167, 6692, 8365, 8810, 12334, 16730, 17620, 24668, 30835, 33460, 61670, 123340, 210559, 421118, 842236, 1052795, 1473913, 2105590, 2947826, 4211180, 5895652, 7369565, 14739130, 29478260]

約数ペア:

[(1, 29478260), (2, 14739130), (4, 7369565), (5, 5895652), (7, 4211180), (10, 2947826), (14, 2105590), (20, 1473913), (28, 1052795), (35, 842236), (70, 421118), (140, 210559), (239, 123340), (478, 61670), (881, 33460), (956, 30835), (1195, 24668), (1673, 17620), (1762, 16730), (2390, 12334), (3346, 8810), (3524, 8365), (4405, 6692), (4780, 6167)]