268580013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:761

約数の個数: 32

約数和(自身を含む): 393523200

約数和(自身を除く): 124943187

約数列:

[1, 3, 13, 39, 79, 179, 237, 487, 537, 1027, 1461, 2327, 3081, 6331, 6981, 14141, 18993, 38473, 42423, 87173, 115419, 183833, 261519, 500149, 551499, 1133249, 1500447, 3399747, 6886667, 20660001, 89526671, 268580013]

約数ペア:

[(1, 268580013), (3, 89526671), (13, 20660001), (39, 6886667), (79, 3399747), (179, 1500447), (237, 1133249), (487, 551499), (537, 500149), (1027, 261519), (1461, 183833), (2327, 115419), (3081, 87173), (6331, 42423), (6981, 38473), (14141, 18993)]