1980550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 4343472

約数和(自身を除く): 2362922

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 277, 286, 325, 550, 554, 650, 715, 1385, 1430, 2770, 3047, 3575, 3601, 6094, 6925, 7150, 7202, 13850, 15235, 18005, 30470, 36010, 39611, 76175, 79222, 90025, 152350, 180050, 198055, 396110, 990275, 1980550]

約数ペア:

[(1, 1980550), (2, 990275), (5, 396110), (10, 198055), (11, 180050), (13, 152350), (22, 90025), (25, 79222), (26, 76175), (50, 39611), (55, 36010), (65, 30470), (110, 18005), (130, 15235), (143, 13850), (275, 7202), (277, 7150), (286, 6925), (325, 6094), (550, 3601), (554, 3575), (650, 3047), (715, 2770), (1385, 1430)]