19526520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12517}}^1$

素因数の和:12544

約数の個数: 64

約数和(自身を含む): 63090720

約数和(自身を除く): 43564200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12517, 25034, 37551, 50068, 62585, 75102, 100136, 125170, 150204, 162721, 187755, 250340, 300408, 325442, 375510, 488163, 500680, 650884, 751020, 813605, 976326, 1301768, 1502040, 1627210, 1952652, 2440815, 3254420, 3905304, 4881630, 6508840, 9763260, 19526520]

約数ペア:

[(1, 19526520), (2, 9763260), (3, 6508840), (4, 4881630), (5, 3905304), (6, 3254420), (8, 2440815), (10, 1952652), (12, 1627210), (13, 1502040), (15, 1301768), (20, 976326), (24, 813605), (26, 751020), (30, 650884), (39, 500680), (40, 488163), (52, 375510), (60, 325442), (65, 300408), (78, 250340), (104, 187755), (120, 162721), (130, 150204), (156, 125170), (195, 100136), (260, 75102), (312, 62585), (390, 50068), (520, 37551), (780, 25034), (1560, 12517)]