18928750

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:838

約数の個数: 40

約数和(自身を含む): 37394280

約数和(自身を除く): 18465530

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 190, 250, 475, 625, 797, 950, 1250, 1594, 2375, 3985, 4750, 7970, 11875, 15143, 19925, 23750, 30286, 39850, 75715, 99625, 151430, 199250, 378575, 498125, 757150, 996250, 1892875, 3785750, 9464375, 18928750]

約数ペア:

[(1, 18928750), (2, 9464375), (5, 3785750), (10, 1892875), (19, 996250), (25, 757150), (38, 498125), (50, 378575), (95, 199250), (125, 151430), (190, 99625), (250, 75715), (475, 39850), (625, 30286), (797, 23750), (950, 19925), (1250, 15143), (1594, 11875), (2375, 7970), (3985, 4750)]