256401840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1871}}^1$

素因数の和:2458

約数の個数: 80

約数和(自身を含む): 796663296

約数和(自身を除く): 540261456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 571, 1142, 1713, 1871, 2284, 2855, 3426, 3742, 4568, 5613, 5710, 6852, 7484, 8565, 9136, 9355, 11226, 11420, 13704, 14968, 17130, 18710, 22452, 22840, 27408, 28065, 29936, 34260, 37420, 44904, 45680, 56130, 68520, 74840, 89808, 112260, 137040, 149680, 224520, 449040, 1068341, 2136682, 3205023, 4273364, 5341705, 6410046, 8546728, 10683410, 12820092, 16025115, 17093456, 21366820, 25640184, 32050230, 42733640, 51280368, 64100460, 85467280, 128200920, 256401840]

約数ペア:

[(1, 256401840), (2, 128200920), (3, 85467280), (4, 64100460), (5, 51280368), (6, 42733640), (8, 32050230), (10, 25640184), (12, 21366820), (15, 17093456), (16, 16025115), (20, 12820092), (24, 10683410), (30, 8546728), (40, 6410046), (48, 5341705), (60, 4273364), (80, 3205023), (120, 2136682), (240, 1068341), (571, 449040), (1142, 224520), (1713, 149680), (1871, 137040), (2284, 112260), (2855, 89808), (3426, 74840), (3742, 68520), (4568, 56130), (5613, 45680), (5710, 44904), (6852, 37420), (7484, 34260), (8565, 29936), (9136, 28065), (9355, 27408), (11226, 22840), (11420, 22452), (13704, 18710), (14968, 17130)]