201259760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:906

約数の個数: 80

約数和(自身を含む): 506217600

約数和(自身を除く): 304957840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 431, 449, 520, 862, 898, 1040, 1724, 1796, 2155, 2245, 3448, 3592, 4310, 4490, 5603, 5837, 6896, 7184, 8620, 8980, 11206, 11674, 17240, 17960, 22412, 23348, 28015, 29185, 34480, 35920, 44824, 46696, 56030, 58370, 89648, 93392, 112060, 116740, 193519, 224120, 233480, 387038, 448240, 466960, 774076, 967595, 1548152, 1935190, 2515747, 3096304, 3870380, 5031494, 7740760, 10062988, 12578735, 15481520, 20125976, 25157470, 40251952, 50314940, 100629880, 201259760]

約数ペア:

[(1, 201259760), (2, 100629880), (4, 50314940), (5, 40251952), (8, 25157470), (10, 20125976), (13, 15481520), (16, 12578735), (20, 10062988), (26, 7740760), (40, 5031494), (52, 3870380), (65, 3096304), (80, 2515747), (104, 1935190), (130, 1548152), (208, 967595), (260, 774076), (431, 466960), (449, 448240), (520, 387038), (862, 233480), (898, 224120), (1040, 193519), (1724, 116740), (1796, 112060), (2155, 93392), (2245, 89648), (3448, 58370), (3592, 56030), (4310, 46696), (4490, 44824), (5603, 35920), (5837, 34480), (6896, 29185), (7184, 28015), (8620, 23348), (8980, 22412), (11206, 17960), (11674, 17240)]