858704620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1\times {\mathrm{4057}}^1$

素因数の和:4642

約数の個数: 48

約数和(自身を含む): 1902065760

約数和(自身を除く): 1043361140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 557, 1114, 2228, 2785, 4057, 5570, 8114, 10583, 11140, 16228, 20285, 21166, 40570, 42332, 52915, 77083, 81140, 105830, 154166, 211660, 308332, 385415, 770830, 1541660, 2259749, 4519498, 9038996, 11298745, 22597490, 42935231, 45194980, 85870462, 171740924, 214676155, 429352310, 858704620]

約数ペア:

[(1, 858704620), (2, 429352310), (4, 214676155), (5, 171740924), (10, 85870462), (19, 45194980), (20, 42935231), (38, 22597490), (76, 11298745), (95, 9038996), (190, 4519498), (380, 2259749), (557, 1541660), (1114, 770830), (2228, 385415), (2785, 308332), (4057, 211660), (5570, 154166), (8114, 105830), (10583, 81140), (11140, 77083), (16228, 52915), (20285, 42332), (21166, 40570)]