251935760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 120

約数和(自身を含む): 631667160

約数和(自身を除く): 379731400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 113, 116, 124, 145, 155, 226, 232, 248, 290, 310, 452, 464, 496, 565, 580, 620, 899, 904, 961, 1130, 1160, 1240, 1798, 1808, 1922, 2260, 2320, 2480, 3277, 3503, 3596, 3844, 4495, 4520, 4805, 6554, 7006, 7192, 7688, 8990, 9040, 9610, 13108, 14012, 14384, 15376, 16385, 17515, 17980, 19220, 26216, 27869, 28024, 32770, 35030, 35960, 38440, 52432, 55738, 56048, 65540, 70060, 71920, 76880, 101587, 108593, 111476, 131080, 139345, 140120, 203174, 217186, 222952, 262160, 278690, 280240, 406348, 434372, 445904, 507935, 542965, 557380, 812696, 868744, 1015870, 1085930, 1114760, 1625392, 1737488, 2031740, 2171860, 2229520, 3149197, 4063480, 4343720, 6298394, 8126960, 8687440, 12596788, 15745985, 25193576, 31491970, 50387152, 62983940, 125967880, 251935760]

約数ペア:

[(1, 251935760), (2, 125967880), (4, 62983940), (5, 50387152), (8, 31491970), (10, 25193576), (16, 15745985), (20, 12596788), (29, 8687440), (31, 8126960), (40, 6298394), (58, 4343720), (62, 4063480), (80, 3149197), (113, 2229520), (116, 2171860), (124, 2031740), (145, 1737488), (155, 1625392), (226, 1114760), (232, 1085930), (248, 1015870), (290, 868744), (310, 812696), (452, 557380), (464, 542965), (496, 507935), (565, 445904), (580, 434372), (620, 406348), (899, 280240), (904, 278690), (961, 262160), (1130, 222952), (1160, 217186), (1240, 203174), (1798, 140120), (1808, 139345), (1922, 131080), (2260, 111476), (2320, 108593), (2480, 101587), (3277, 76880), (3503, 71920), (3596, 70060), (3844, 65540), (4495, 56048), (4520, 55738), (4805, 52432), (6554, 38440), (7006, 35960), (7192, 35030), (7688, 32770), (8990, 28024), (9040, 27869), (9610, 26216), (13108, 19220), (14012, 17980), (14384, 17515), (15376, 16385)]