520019765420

素因数分解:

$2^2\times 5^1\times {\mathrm{319607}}^1\times {\mathrm{81353}}^1$

素因数の和:400969

約数の個数: 24

約数和(自身を含む): 1092058347744

約数和(自身を除く): 572038582324

約数列:

[1, 2, 4, 5, 10, 20, 81353, 162706, 319607, 325412, 406765, 639214, 813530, 1278428, 1598035, 1627060, 3196070, 6392140, 26000988271, 52001976542, 104003953084, 130004941355, 260009882710, 520019765420]

約数ペア:

[(1, 520019765420), (2, 260009882710), (4, 130004941355), (5, 104003953084), (10, 52001976542), (20, 26000988271), (81353, 6392140), (162706, 3196070), (319607, 1627060), (325412, 1598035), (406765, 1278428), (639214, 813530)]