30487640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{4211}}^1$

素因数の和:4403

約数の個数: 32

約数和(自身を含む): 68992560

約数和(自身を除く): 38504920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 4211, 7240, 8422, 16844, 21055, 33688, 42110, 84220, 168440, 762191, 1524382, 3048764, 3810955, 6097528, 7621910, 15243820, 30487640]

約数ペア:

[(1, 30487640), (2, 15243820), (4, 7621910), (5, 6097528), (8, 3810955), (10, 3048764), (20, 1524382), (40, 762191), (181, 168440), (362, 84220), (724, 42110), (905, 33688), (1448, 21055), (1810, 16844), (3620, 8422), (4211, 7240)]