51157855

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 72493056

約数和(自身を除く): 21335201

約数列:

[1, 5, 7, 35, 47, 137, 227, 235, 329, 685, 959, 1135, 1589, 1645, 4795, 6439, 7945, 10669, 31099, 32195, 45073, 53345, 74683, 155495, 217693, 225365, 373415, 1088465, 1461653, 7308265, 10231571, 51157855]

約数ペア:

[(1, 51157855), (5, 10231571), (7, 7308265), (35, 1461653), (47, 1088465), (137, 373415), (227, 225365), (235, 217693), (329, 155495), (685, 74683), (959, 53345), (1135, 45073), (1589, 32195), (1645, 31099), (4795, 10669), (6439, 7945)]