20516630

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{269}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 17974570

約数列:

[1, 2, 5, 10, 29, 58, 145, 263, 269, 290, 526, 538, 1315, 1345, 2630, 2690, 7627, 7801, 15254, 15602, 38135, 39005, 70747, 76270, 78010, 141494, 353735, 707470, 2051663, 4103326, 10258315, 20516630]

約数ペア:

[(1, 20516630), (2, 10258315), (5, 4103326), (10, 2051663), (29, 707470), (58, 353735), (145, 141494), (263, 78010), (269, 76270), (290, 70747), (526, 39005), (538, 38135), (1315, 15602), (1345, 15254), (2630, 7801), (2690, 7627)]