20725250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 27078142

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 875, 910, 911, 1625, 1750, 1822, 2275, 3250, 4550, 4555, 6377, 9110, 11375, 11843, 12754, 22750, 22775, 23686, 31885, 45550, 59215, 63770, 82901, 113875, 118430, 159425, 165802, 227750, 296075, 318850, 414505, 592150, 797125, 829010, 1480375, 1594250, 2072525, 2960750, 4145050, 10362625, 20725250]

約数ペア:

[(1, 20725250), (2, 10362625), (5, 4145050), (7, 2960750), (10, 2072525), (13, 1594250), (14, 1480375), (25, 829010), (26, 797125), (35, 592150), (50, 414505), (65, 318850), (70, 296075), (91, 227750), (125, 165802), (130, 159425), (175, 118430), (182, 113875), (250, 82901), (325, 63770), (350, 59215), (455, 45550), (650, 31885), (875, 23686), (910, 22775), (911, 22750), (1625, 12754), (1750, 11843), (1822, 11375), (2275, 9110), (3250, 6377), (4550, 4555)]