201901960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388273}}^1$

素因数の和:388297

約数の個数: 32

約数和(自身を含む): 489225240

約数和(自身を除く): 287323280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388273, 776546, 1553092, 1941365, 3106184, 3882730, 5047549, 7765460, 10095098, 15530920, 20190196, 25237745, 40380392, 50475490, 100950980, 201901960]

約数ペア:

[(1, 201901960), (2, 100950980), (4, 50475490), (5, 40380392), (8, 25237745), (10, 20190196), (13, 15530920), (20, 10095098), (26, 7765460), (40, 5047549), (52, 3882730), (65, 3106184), (104, 1941365), (130, 1553092), (260, 776546), (520, 388273)]