20722650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10627}}^1$

素因数の和:10655

約数の個数: 48

約数和(自身を含む): 55350624

約数和(自身を除く): 34627974

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10627, 21254, 31881, 53135, 63762, 106270, 138151, 159405, 265675, 276302, 318810, 414453, 531350, 690755, 797025, 828906, 1381510, 1594050, 2072265, 3453775, 4144530, 6907550, 10361325, 20722650]

約数ペア:

[(1, 20722650), (2, 10361325), (3, 6907550), (5, 4144530), (6, 3453775), (10, 2072265), (13, 1594050), (15, 1381510), (25, 828906), (26, 797025), (30, 690755), (39, 531350), (50, 414453), (65, 318810), (75, 276302), (78, 265675), (130, 159405), (150, 138151), (195, 106270), (325, 63762), (390, 53135), (650, 31881), (975, 21254), (1950, 10627)]