313080820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{8663}}^1$

素因数の和:8824

約数の個数: 48

約数和(自身を含む): 713220480

約数和(自身を除く): 400139660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2780, 3614, 7228, 8663, 9035, 17326, 18070, 34652, 36140, 43315, 86630, 112619, 173260, 225238, 450476, 563095, 1126190, 1204157, 2252380, 2408314, 4816628, 6020785, 12041570, 15654041, 24083140, 31308082, 62616164, 78270205, 156540410, 313080820]

約数ペア:

[(1, 313080820), (2, 156540410), (4, 78270205), (5, 62616164), (10, 31308082), (13, 24083140), (20, 15654041), (26, 12041570), (52, 6020785), (65, 4816628), (130, 2408314), (139, 2252380), (260, 1204157), (278, 1126190), (556, 563095), (695, 450476), (1390, 225238), (1807, 173260), (2780, 112619), (3614, 86630), (7228, 43315), (8663, 36140), (9035, 34652), (17326, 18070)]