28828020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2843}}^1$

素因数の和:2881

約数の個数: 72

約数和(自身を含む): 87435936

約数和(自身を除く): 58607916

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2535, 2843, 3380, 5070, 5686, 8529, 10140, 11372, 14215, 17058, 28430, 34116, 36959, 42645, 56860, 73918, 85290, 110877, 147836, 170580, 184795, 221754, 369590, 443508, 480467, 554385, 739180, 960934, 1108770, 1441401, 1921868, 2217540, 2402335, 2882802, 4804670, 5765604, 7207005, 9609340, 14414010, 28828020]

約数ペア:

[(1, 28828020), (2, 14414010), (3, 9609340), (4, 7207005), (5, 5765604), (6, 4804670), (10, 2882802), (12, 2402335), (13, 2217540), (15, 1921868), (20, 1441401), (26, 1108770), (30, 960934), (39, 739180), (52, 554385), (60, 480467), (65, 443508), (78, 369590), (130, 221754), (156, 184795), (169, 170580), (195, 147836), (260, 110877), (338, 85290), (390, 73918), (507, 56860), (676, 42645), (780, 36959), (845, 34116), (1014, 28430), (1690, 17058), (2028, 14215), (2535, 11372), (2843, 10140), (3380, 8529), (5070, 5686)]