678465710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{233}}^1\times {\mathrm{1723}}^1$

素因数の和:1989

約数の個数: 48

約数和(自身を含む): 1328852304

約数和(自身を除く): 650386594

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 233, 338, 466, 845, 1165, 1690, 1723, 2330, 3029, 3446, 6058, 8615, 15145, 17230, 22399, 30290, 39377, 44798, 78754, 111995, 196885, 223990, 291187, 393770, 401459, 582374, 802918, 1455935, 2007295, 2911870, 4014590, 5218967, 10437934, 26094835, 52189670, 67846571, 135693142, 339232855, 678465710]

約数ペア:

[(1, 678465710), (2, 339232855), (5, 135693142), (10, 67846571), (13, 52189670), (26, 26094835), (65, 10437934), (130, 5218967), (169, 4014590), (233, 2911870), (338, 2007295), (466, 1455935), (845, 802918), (1165, 582374), (1690, 401459), (1723, 393770), (2330, 291187), (3029, 223990), (3446, 196885), (6058, 111995), (8615, 78754), (15145, 44798), (17230, 39377), (22399, 30290)]