201991520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:588

約数の個数: 96

約数和(自身を含む): 502951680

約数和(自身を除く): 300960160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 131, 160, 184, 230, 262, 368, 419, 460, 524, 655, 736, 838, 920, 1048, 1310, 1676, 1840, 2095, 2096, 2620, 3013, 3352, 3680, 4190, 4192, 5240, 6026, 6704, 8380, 9637, 10480, 12052, 13408, 15065, 16760, 19274, 20960, 24104, 30130, 33520, 38548, 48185, 48208, 54889, 60260, 67040, 77096, 96370, 96416, 109778, 120520, 154192, 192740, 219556, 241040, 274445, 308384, 385480, 439112, 482080, 548890, 770960, 878224, 1097780, 1262447, 1541920, 1756448, 2195560, 2524894, 4391120, 5049788, 6312235, 8782240, 10099576, 12624470, 20199152, 25248940, 40398304, 50497880, 100995760, 201991520]

約数ペア:

[(1, 201991520), (2, 100995760), (4, 50497880), (5, 40398304), (8, 25248940), (10, 20199152), (16, 12624470), (20, 10099576), (23, 8782240), (32, 6312235), (40, 5049788), (46, 4391120), (80, 2524894), (92, 2195560), (115, 1756448), (131, 1541920), (160, 1262447), (184, 1097780), (230, 878224), (262, 770960), (368, 548890), (419, 482080), (460, 439112), (524, 385480), (655, 308384), (736, 274445), (838, 241040), (920, 219556), (1048, 192740), (1310, 154192), (1676, 120520), (1840, 109778), (2095, 96416), (2096, 96370), (2620, 77096), (3013, 67040), (3352, 60260), (3680, 54889), (4190, 48208), (4192, 48185), (5240, 38548), (6026, 33520), (6704, 30130), (8380, 24104), (9637, 20960), (10480, 19274), (12052, 16760), (13408, 15065)]