20487415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 28486080

約数和(自身を除く): 7998665

約数列:

[1, 5, 13, 19, 53, 65, 95, 247, 265, 313, 689, 1007, 1235, 1565, 3445, 4069, 5035, 5947, 13091, 16589, 20345, 29735, 65455, 77311, 82945, 215657, 315191, 386555, 1078285, 1575955, 4097483, 20487415]

約数ペア:

[(1, 20487415), (5, 4097483), (13, 1575955), (19, 1078285), (53, 386555), (65, 315191), (95, 215657), (247, 82945), (265, 77311), (313, 65455), (689, 29735), (1007, 20345), (1235, 16589), (1565, 13091), (3445, 5947), (4069, 5035)]