18642000980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1\times {\mathrm{617}}^1$

素因数の和:1229

約数の個数: 96

約数和(自身を含む): 41011518240

約数和(自身を除く): 22369517260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 290, 452, 461, 565, 580, 617, 922, 1130, 1234, 1844, 2260, 2305, 2468, 3085, 3277, 4610, 6170, 6554, 9220, 12340, 13108, 13369, 16385, 17893, 26738, 32770, 35786, 52093, 53476, 65540, 66845, 69721, 71572, 89465, 104186, 133690, 139442, 178930, 208372, 260465, 267380, 278884, 284437, 348605, 357860, 520930, 568874, 697210, 1041860, 1137748, 1394420, 1422185, 1510697, 2021909, 2844370, 3021394, 4043818, 5688740, 6042788, 7553485, 8087636, 8248673, 10109545, 15106970, 16497346, 20219090, 30213940, 32141381, 32994692, 40438180, 41243365, 64282762, 82486730, 128565524, 160706905, 164973460, 321413810, 642827620, 932100049, 1864200098, 3728400196, 4660500245, 9321000490, 18642000980]

約数ペア:

[(1, 18642000980), (2, 9321000490), (4, 4660500245), (5, 3728400196), (10, 1864200098), (20, 932100049), (29, 642827620), (58, 321413810), (113, 164973460), (116, 160706905), (145, 128565524), (226, 82486730), (290, 64282762), (452, 41243365), (461, 40438180), (565, 32994692), (580, 32141381), (617, 30213940), (922, 20219090), (1130, 16497346), (1234, 15106970), (1844, 10109545), (2260, 8248673), (2305, 8087636), (2468, 7553485), (3085, 6042788), (3277, 5688740), (4610, 4043818), (6170, 3021394), (6554, 2844370), (9220, 2021909), (12340, 1510697), (13108, 1422185), (13369, 1394420), (16385, 1137748), (17893, 1041860), (26738, 697210), (32770, 568874), (35786, 520930), (52093, 357860), (53476, 348605), (65540, 284437), (66845, 278884), (69721, 267380), (71572, 260465), (89465, 208372), (104186, 178930), (133690, 139442)]