856558820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{49171}}^1$

素因数の和:49260

約数の個数: 48

約数和(自身を含む): 1966093248

約数和(自身を除く): 1109534428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 17420, 49171, 98342, 196684, 245855, 491710, 639223, 983420, 1278446, 2556892, 3196115, 3294457, 6392230, 6588914, 12784460, 13177828, 16472285, 32944570, 42827941, 65889140, 85655882, 171311764, 214139705, 428279410, 856558820]

約数ペア:

[(1, 856558820), (2, 428279410), (4, 214139705), (5, 171311764), (10, 85655882), (13, 65889140), (20, 42827941), (26, 32944570), (52, 16472285), (65, 13177828), (67, 12784460), (130, 6588914), (134, 6392230), (260, 3294457), (268, 3196115), (335, 2556892), (670, 1278446), (871, 983420), (1340, 639223), (1742, 491710), (3484, 245855), (4355, 196684), (8710, 98342), (17420, 49171)]