256568520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1009}}^1$

素因数の和:1199

約数の個数: 128

約数和(自身を含む): 834825600

約数和(自身を除く): 578257080

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, 163, 195, 260, 312, 326, 390, 489, 520, 652, 780, 815, 978, 1009, 1304, 1560, 1630, 1956, 2018, 2119, 2445, 3027, 3260, 3912, 4036, 4238, 4890, 5045, 6054, 6357, 6520, 8072, 8476, 9780, 10090, 10595, 12108, 12714, 13117, 15135, 16952, 19560, 20180, 21190, 24216, 25428, 26234, 30270, 31785, 39351, 40360, 42380, 50856, 52468, 60540, 63570, 65585, 78702, 84760, 104936, 121080, 127140, 131170, 157404, 164467, 196755, 254280, 262340, 314808, 328934, 393510, 493401, 524680, 657868, 787020, 822335, 986802, 1315736, 1574040, 1644670, 1973604, 2138071, 2467005, 3289340, 3947208, 4276142, 4934010, 6414213, 6578680, 8552284, 9868020, 10690355, 12828426, 17104568, 19736040, 21380710, 25656852, 32071065, 42761420, 51313704, 64142130, 85522840, 128284260, 256568520]

約数ペア:

[(1, 256568520), (2, 128284260), (3, 85522840), (4, 64142130), (5, 51313704), (6, 42761420), (8, 32071065), (10, 25656852), (12, 21380710), (13, 19736040), (15, 17104568), (20, 12828426), (24, 10690355), (26, 9868020), (30, 8552284), (39, 6578680), (40, 6414213), (52, 4934010), (60, 4276142), (65, 3947208), (78, 3289340), (104, 2467005), (120, 2138071), (130, 1973604), (156, 1644670), (163, 1574040), (195, 1315736), (260, 986802), (312, 822335), (326, 787020), (390, 657868), (489, 524680), (520, 493401), (652, 393510), (780, 328934), (815, 314808), (978, 262340), (1009, 254280), (1304, 196755), (1560, 164467), (1630, 157404), (1956, 131170), (2018, 127140), (2119, 121080), (2445, 104936), (3027, 84760), (3260, 78702), (3912, 65585), (4036, 63570), (4238, 60540), (4890, 52468), (5045, 50856), (6054, 42380), (6357, 40360), (6520, 39351), (8072, 31785), (8476, 30270), (9780, 26234), (10090, 25428), (10595, 24216), (12108, 21190), (12714, 20180), (13117, 19560), (15135, 16952)]