20615490

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:824

約数の個数: 96

約数和(自身を含む): 62764416

約数和(自身を除く): 42148926

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 63, 70, 86, 90, 105, 126, 129, 210, 215, 258, 301, 315, 387, 430, 602, 630, 645, 761, 774, 903, 1290, 1505, 1522, 1806, 1935, 2283, 2709, 3010, 3805, 3870, 4515, 4566, 5327, 5418, 6849, 7610, 9030, 10654, 11415, 13545, 13698, 15981, 22830, 26635, 27090, 31962, 32723, 34245, 47943, 53270, 65446, 68490, 79905, 95886, 98169, 159810, 163615, 196338, 229061, 239715, 294507, 327230, 458122, 479430, 490845, 589014, 687183, 981690, 1145305, 1374366, 1472535, 2061549, 2290610, 2945070, 3435915, 4123098, 6871830, 10307745, 20615490]

約数ペア:

[(1, 20615490), (2, 10307745), (3, 6871830), (5, 4123098), (6, 3435915), (7, 2945070), (9, 2290610), (10, 2061549), (14, 1472535), (15, 1374366), (18, 1145305), (21, 981690), (30, 687183), (35, 589014), (42, 490845), (43, 479430), (45, 458122), (63, 327230), (70, 294507), (86, 239715), (90, 229061), (105, 196338), (126, 163615), (129, 159810), (210, 98169), (215, 95886), (258, 79905), (301, 68490), (315, 65446), (387, 53270), (430, 47943), (602, 34245), (630, 32723), (645, 31962), (761, 27090), (774, 26635), (903, 22830), (1290, 15981), (1505, 13698), (1522, 13545), (1806, 11415), (1935, 10654), (2283, 9030), (2709, 7610), (3010, 6849), (3805, 5418), (3870, 5327), (4515, 4566)]