28279240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64271}}^1$

素因数の和:64293

約数の個数: 32

約数和(自身を含む): 69413760

約数和(自身を除く): 41134520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64271, 128542, 257084, 321355, 514168, 642710, 706981, 1285420, 1413962, 2570840, 2827924, 3534905, 5655848, 7069810, 14139620, 28279240]

約数ペア:

[(1, 28279240), (2, 14139620), (4, 7069810), (5, 5655848), (8, 3534905), (10, 2827924), (11, 2570840), (20, 1413962), (22, 1285420), (40, 706981), (44, 642710), (55, 514168), (88, 321355), (110, 257084), (220, 128542), (440, 64271)]