421447640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{58211}}^1$

素因数の和:58403

約数の個数: 32

約数和(自身を含む): 953512560

約数和(自身を除く): 532064920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 58211, 116422, 232844, 291055, 465688, 582110, 1164220, 2328440, 10536191, 21072382, 42144764, 52680955, 84289528, 105361910, 210723820, 421447640]

約数ペア:

[(1, 421447640), (2, 210723820), (4, 105361910), (5, 84289528), (8, 52680955), (10, 42144764), (20, 21072382), (40, 10536191), (181, 2328440), (362, 1164220), (724, 582110), (905, 465688), (1448, 291055), (1810, 232844), (3620, 116422), (7240, 58211)]