51415420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1429}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 123963840

約数和(自身を除く): 72548420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1429, 1799, 2570, 2858, 3598, 5140, 5716, 7145, 7196, 8995, 10003, 14290, 17990, 20006, 28580, 35980, 40012, 50015, 100030, 200060, 367253, 734506, 1469012, 1836265, 2570771, 3672530, 5141542, 7345060, 10283084, 12853855, 25707710, 51415420]

約数ペア:

[(1, 51415420), (2, 25707710), (4, 12853855), (5, 10283084), (7, 7345060), (10, 5141542), (14, 3672530), (20, 2570771), (28, 1836265), (35, 1469012), (70, 734506), (140, 367253), (257, 200060), (514, 100030), (1028, 50015), (1285, 40012), (1429, 35980), (1799, 28580), (2570, 20006), (2858, 17990), (3598, 14290), (5140, 10003), (5716, 8995), (7145, 7196)]