1025240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 2468880

約数和(自身を除く): 1443640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 361, 380, 568, 710, 722, 760, 1349, 1420, 1444, 1805, 2698, 2840, 2888, 3610, 5396, 6745, 7220, 10792, 13490, 14440, 25631, 26980, 51262, 53960, 102524, 128155, 205048, 256310, 512620, 1025240]

約数ペア:

[(1, 1025240), (2, 512620), (4, 256310), (5, 205048), (8, 128155), (10, 102524), (19, 53960), (20, 51262), (38, 26980), (40, 25631), (71, 14440), (76, 13490), (95, 10792), (142, 7220), (152, 6745), (190, 5396), (284, 3610), (355, 2888), (361, 2840), (380, 2698), (568, 1805), (710, 1444), (722, 1420), (760, 1349)]