291369520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:999

約数の個数: 120

約数和(自身を含む): 766263456

約数和(自身を除く): 474893936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 169, 184, 208, 230, 260, 299, 338, 368, 460, 520, 598, 676, 845, 920, 937, 1040, 1196, 1352, 1495, 1690, 1840, 1874, 2392, 2704, 2990, 3380, 3748, 3887, 4685, 4784, 5980, 6760, 7496, 7774, 9370, 11960, 12181, 13520, 14992, 15548, 18740, 19435, 21551, 23920, 24362, 31096, 37480, 38870, 43102, 48724, 60905, 62192, 74960, 77740, 86204, 97448, 107755, 121810, 155480, 158353, 172408, 194896, 215510, 243620, 280163, 310960, 316706, 344816, 431020, 487240, 560326, 633412, 791765, 862040, 974480, 1120652, 1266824, 1400815, 1583530, 1724080, 2241304, 2533648, 2801630, 3167060, 3642119, 4482608, 5603260, 6334120, 7284238, 11206520, 12668240, 14568476, 18210595, 22413040, 29136952, 36421190, 58273904, 72842380, 145684760, 291369520]

約数ペア:

[(1, 291369520), (2, 145684760), (4, 72842380), (5, 58273904), (8, 36421190), (10, 29136952), (13, 22413040), (16, 18210595), (20, 14568476), (23, 12668240), (26, 11206520), (40, 7284238), (46, 6334120), (52, 5603260), (65, 4482608), (80, 3642119), (92, 3167060), (104, 2801630), (115, 2533648), (130, 2241304), (169, 1724080), (184, 1583530), (208, 1400815), (230, 1266824), (260, 1120652), (299, 974480), (338, 862040), (368, 791765), (460, 633412), (520, 560326), (598, 487240), (676, 431020), (845, 344816), (920, 316706), (937, 310960), (1040, 280163), (1196, 243620), (1352, 215510), (1495, 194896), (1690, 172408), (1840, 158353), (1874, 155480), (2392, 121810), (2704, 107755), (2990, 97448), (3380, 86204), (3748, 77740), (3887, 74960), (4685, 62192), (4784, 60905), (5980, 48724), (6760, 43102), (7496, 38870), (7774, 37480), (9370, 31096), (11960, 24362), (12181, 23920), (13520, 21551), (14992, 19435), (15548, 18740)]