30827920

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2129}}^1$

素因数の和:2323

約数の個数: 40

約数和(自身を含む): 72104760

約数和(自身を除く): 41276840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2129, 2896, 3620, 4258, 7240, 8516, 10645, 14480, 17032, 21290, 34064, 42580, 85160, 170320, 385349, 770698, 1541396, 1926745, 3082792, 3853490, 6165584, 7706980, 15413960, 30827920]

約数ペア:

[(1, 30827920), (2, 15413960), (4, 7706980), (5, 6165584), (8, 3853490), (10, 3082792), (16, 1926745), (20, 1541396), (40, 770698), (80, 385349), (181, 170320), (362, 85160), (724, 42580), (905, 34064), (1448, 21290), (1810, 17032), (2129, 14480), (2896, 10645), (3620, 8516), (4258, 7240)]