19925750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{6131}}^1$

素因数の和:6161

約数の個数: 32

約数和(自身を含む): 40176864

約数和(自身を除く): 20251114

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 6131, 12262, 30655, 61310, 79703, 153275, 159406, 306550, 398515, 766375, 797030, 1532750, 1992575, 3985150, 9962875, 19925750]

約数ペア:

[(1, 19925750), (2, 9962875), (5, 3985150), (10, 1992575), (13, 1532750), (25, 797030), (26, 766375), (50, 398515), (65, 306550), (125, 159406), (130, 153275), (250, 79703), (325, 61310), (650, 30655), (1625, 12262), (3250, 6131)]