51709640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3581}}^1$

素因数の和:3630

約数の個数: 48

約数和(自身を含む): 122826780

約数和(自身を除く): 71117140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3581, 3610, 7162, 7220, 14324, 14440, 17905, 28648, 35810, 68039, 71620, 136078, 143240, 272156, 340195, 544312, 680390, 1292741, 1360780, 2585482, 2721560, 5170964, 6463705, 10341928, 12927410, 25854820, 51709640]

約数ペア:

[(1, 51709640), (2, 25854820), (4, 12927410), (5, 10341928), (8, 6463705), (10, 5170964), (19, 2721560), (20, 2585482), (38, 1360780), (40, 1292741), (76, 680390), (95, 544312), (152, 340195), (190, 272156), (361, 143240), (380, 136078), (722, 71620), (760, 68039), (1444, 35810), (1805, 28648), (2888, 17905), (3581, 14440), (3610, 14324), (7162, 7220)]