512620

素因数分解:

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

素因数の和:118

約数の個数: 36

約数和(自身を含む): 1152144

約数和(自身を除く): 639524

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 361, 380, 710, 722, 1349, 1420, 1444, 1805, 2698, 3610, 5396, 6745, 7220, 13490, 25631, 26980, 51262, 102524, 128155, 256310, 512620]

約数ペア:

[(1, 512620), (2, 256310), (4, 128155), (5, 102524), (10, 51262), (19, 26980), (20, 25631), (38, 13490), (71, 7220), (76, 6745), (95, 5396), (142, 3610), (190, 2698), (284, 1805), (355, 1444), (361, 1420), (380, 1349), (710, 722)]