66461720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5557}}^1$

素因数の和:5604

約数の個数: 64

約数和(自身を含む): 168073920

約数和(自身を除く): 101612200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 2392, 2990, 5557, 5980, 11114, 11960, 22228, 27785, 44456, 55570, 72241, 111140, 127811, 144482, 222280, 255622, 288964, 361205, 511244, 577928, 639055, 722410, 1022488, 1278110, 1444820, 1661543, 2556220, 2889640, 3323086, 5112440, 6646172, 8307715, 13292344, 16615430, 33230860, 66461720]

約数ペア:

[(1, 66461720), (2, 33230860), (4, 16615430), (5, 13292344), (8, 8307715), (10, 6646172), (13, 5112440), (20, 3323086), (23, 2889640), (26, 2556220), (40, 1661543), (46, 1444820), (52, 1278110), (65, 1022488), (92, 722410), (104, 639055), (115, 577928), (130, 511244), (184, 361205), (230, 288964), (260, 255622), (299, 222280), (460, 144482), (520, 127811), (598, 111140), (920, 72241), (1196, 55570), (1495, 44456), (2392, 27785), (2990, 22228), (5557, 11960), (5980, 11114)]