20894250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2143}}^1$

素因数の和:2176

約数の個数: 64

約数和(自身を含む): 56189952

約数和(自身を除く): 35295702

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2143, 3250, 4286, 4875, 6429, 9750, 10715, 12858, 21430, 27859, 32145, 53575, 55718, 64290, 83577, 107150, 139295, 160725, 167154, 267875, 278590, 321450, 417885, 535750, 696475, 803625, 835770, 1392950, 1607250, 2089425, 3482375, 4178850, 6964750, 10447125, 20894250]

約数ペア:

[(1, 20894250), (2, 10447125), (3, 6964750), (5, 4178850), (6, 3482375), (10, 2089425), (13, 1607250), (15, 1392950), (25, 835770), (26, 803625), (30, 696475), (39, 535750), (50, 417885), (65, 321450), (75, 278590), (78, 267875), (125, 167154), (130, 160725), (150, 139295), (195, 107150), (250, 83577), (325, 64290), (375, 55718), (390, 53575), (650, 32145), (750, 27859), (975, 21430), (1625, 12858), (1950, 10715), (2143, 9750), (3250, 6429), (4286, 4875)]