12628720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12143}}^1$

素因数の和:12169

約数の個数: 40

約数和(自身を含む): 31622976

約数和(自身を除く): 18994256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12143, 24286, 48572, 60715, 97144, 121430, 157859, 194288, 242860, 315718, 485720, 631436, 789295, 971440, 1262872, 1578590, 2525744, 3157180, 6314360, 12628720]

約数ペア:

[(1, 12628720), (2, 6314360), (4, 3157180), (5, 2525744), (8, 1578590), (10, 1262872), (13, 971440), (16, 789295), (20, 631436), (26, 485720), (40, 315718), (52, 242860), (65, 194288), (80, 157859), (104, 121430), (130, 97144), (208, 60715), (260, 48572), (520, 24286), (1040, 12143)]