665543216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103217}}^1$

素因数の和:103269

約数の個数: 40

約数和(自身を含む): 1433491584

約数和(自身を除く): 767948368

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 103217, 206434, 412868, 825736, 1341821, 1651472, 2683642, 3199727, 5367284, 6399454, 10734568, 12798908, 21469136, 25597816, 41596451, 51195632, 83192902, 166385804, 332771608, 665543216]

約数ペア:

[(1, 665543216), (2, 332771608), (4, 166385804), (8, 83192902), (13, 51195632), (16, 41596451), (26, 25597816), (31, 21469136), (52, 12798908), (62, 10734568), (104, 6399454), (124, 5367284), (208, 3199727), (248, 2683642), (403, 1651472), (496, 1341821), (806, 825736), (1612, 412868), (3224, 206434), (6448, 103217)]