20247045

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 72

約数和(自身を含む): 41056416

約数和(自身を除く): 20809371

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 163, 169, 195, 245, 273, 455, 489, 507, 637, 735, 815, 845, 1141, 1183, 1365, 1911, 2119, 2445, 2535, 3185, 3423, 3549, 5705, 5915, 6357, 7987, 8281, 9555, 10595, 14833, 17115, 17745, 23961, 24843, 27547, 31785, 39935, 41405, 44499, 74165, 82641, 103831, 119805, 124215, 137735, 192829, 222495, 311493, 413205, 519155, 578487, 964145, 1349803, 1557465, 2892435, 4049409, 6749015, 20247045]

約数ペア:

[(1, 20247045), (3, 6749015), (5, 4049409), (7, 2892435), (13, 1557465), (15, 1349803), (21, 964145), (35, 578487), (39, 519155), (49, 413205), (65, 311493), (91, 222495), (105, 192829), (147, 137735), (163, 124215), (169, 119805), (195, 103831), (245, 82641), (273, 74165), (455, 44499), (489, 41405), (507, 39935), (637, 31785), (735, 27547), (815, 24843), (845, 23961), (1141, 17745), (1183, 17115), (1365, 14833), (1911, 10595), (2119, 9555), (2445, 8281), (2535, 7987), (3185, 6357), (3423, 5915), (3549, 5705)]