18248750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1123}}^1$

素因数の和:1158

約数の個数: 40

約数和(自身を含む): 36869448

約数和(自身を除く): 18620698

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1123, 1250, 1625, 2246, 3250, 5615, 8125, 11230, 14599, 16250, 28075, 29198, 56150, 72995, 140375, 145990, 280750, 364975, 701875, 729950, 1403750, 1824875, 3649750, 9124375, 18248750]

約数ペア:

[(1, 18248750), (2, 9124375), (5, 3649750), (10, 1824875), (13, 1403750), (25, 729950), (26, 701875), (50, 364975), (65, 280750), (125, 145990), (130, 140375), (250, 72995), (325, 56150), (625, 29198), (650, 28075), (1123, 16250), (1250, 14599), (1625, 11230), (2246, 8125), (3250, 5615)]