20121798315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{419}}^1\times {\mathrm{2269}}^1$

素因数の和:2796

約数の個数: 64

約数和(自身を含む): 34596979200

約数和(自身を除く): 14475180885

約数列:

[1, 3, 5, 15, 17, 51, 83, 85, 249, 255, 415, 419, 1245, 1257, 1411, 2095, 2269, 4233, 6285, 6807, 7055, 7123, 11345, 21165, 21369, 34035, 34777, 35615, 38573, 104331, 106845, 115719, 173885, 188327, 192865, 521655, 564981, 578595, 591209, 941635, 950711, 1773627, 2824905, 2852133, 2956045, 3201559, 4753555, 8868135, 9604677, 14260665, 16007795, 16162087, 48023385, 48486261, 78909013, 80810435, 236727039, 242431305, 394545065, 1183635195, 1341453221, 4024359663, 6707266105, 20121798315]

約数ペア:

[(1, 20121798315), (3, 6707266105), (5, 4024359663), (15, 1341453221), (17, 1183635195), (51, 394545065), (83, 242431305), (85, 236727039), (249, 80810435), (255, 78909013), (415, 48486261), (419, 48023385), (1245, 16162087), (1257, 16007795), (1411, 14260665), (2095, 9604677), (2269, 8868135), (4233, 4753555), (6285, 3201559), (6807, 2956045), (7055, 2852133), (7123, 2824905), (11345, 1773627), (21165, 950711), (21369, 941635), (34035, 591209), (34777, 578595), (35615, 564981), (38573, 521655), (104331, 192865), (106845, 188327), (115719, 173885)]