15519920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{14923}}^1$

素因数の和:14949

約数の個数: 40

約数和(自身を含む): 38862096

約数和(自身を除く): 23342176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 14923, 29846, 59692, 74615, 119384, 149230, 193999, 238768, 298460, 387998, 596920, 775996, 969995, 1193840, 1551992, 1939990, 3103984, 3879980, 7759960, 15519920]

約数ペア:

[(1, 15519920), (2, 7759960), (4, 3879980), (5, 3103984), (8, 1939990), (10, 1551992), (13, 1193840), (16, 969995), (20, 775996), (26, 596920), (40, 387998), (52, 298460), (65, 238768), (80, 193999), (104, 149230), (130, 119384), (208, 74615), (260, 59692), (520, 29846), (1040, 14923)]