64521405

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2081}}^1$

素因数の和:2158

約数の個数: 48

約数和(自身を含む): 122771376

約数和(自身を除く): 58249971

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 689, 795, 2067, 2081, 2385, 3445, 6201, 6243, 10335, 10405, 18729, 27053, 31005, 31215, 81159, 93645, 110293, 135265, 243477, 330879, 405795, 551465, 992637, 1217385, 1433809, 1654395, 4301427, 4963185, 7169045, 12904281, 21507135, 64521405]

約数ペア:

[(1, 64521405), (3, 21507135), (5, 12904281), (9, 7169045), (13, 4963185), (15, 4301427), (39, 1654395), (45, 1433809), (53, 1217385), (65, 992637), (117, 551465), (159, 405795), (195, 330879), (265, 243477), (477, 135265), (585, 110293), (689, 93645), (795, 81159), (2067, 31215), (2081, 31005), (2385, 27053), (3445, 18729), (6201, 10405), (6243, 10335)]