53402500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:586

約数の個数: 60

約数和(自身を含む): 119858508

約数和(自身を除く): 66456008

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 521, 625, 820, 1025, 1042, 1250, 2050, 2084, 2500, 2605, 4100, 5125, 5210, 10250, 10420, 13025, 20500, 21361, 25625, 26050, 42722, 51250, 52100, 65125, 85444, 102500, 106805, 130250, 213610, 260500, 325625, 427220, 534025, 651250, 1068050, 1302500, 2136100, 2670125, 5340250, 10680500, 13350625, 26701250, 53402500]

約数ペア:

[(1, 53402500), (2, 26701250), (4, 13350625), (5, 10680500), (10, 5340250), (20, 2670125), (25, 2136100), (41, 1302500), (50, 1068050), (82, 651250), (100, 534025), (125, 427220), (164, 325625), (205, 260500), (250, 213610), (410, 130250), (500, 106805), (521, 102500), (625, 85444), (820, 65125), (1025, 52100), (1042, 51250), (1250, 42722), (2050, 26050), (2084, 25625), (2500, 21361), (2605, 20500), (4100, 13025), (5125, 10420), (5210, 10250)]