20273680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{883}}^1$

素因数の和:944

約数の個数: 80

約数和(自身を含む): 55246464

約数和(自身を除く): 34972784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 883, 1148, 1435, 1640, 1766, 2296, 2870, 3280, 3532, 4415, 4592, 5740, 6181, 7064, 8830, 11480, 12362, 14128, 17660, 22960, 24724, 30905, 35320, 36203, 49448, 61810, 70640, 72406, 98896, 123620, 144812, 181015, 247240, 253421, 289624, 362030, 494480, 506842, 579248, 724060, 1013684, 1267105, 1448120, 2027368, 2534210, 2896240, 4054736, 5068420, 10136840, 20273680]

約数ペア:

[(1, 20273680), (2, 10136840), (4, 5068420), (5, 4054736), (7, 2896240), (8, 2534210), (10, 2027368), (14, 1448120), (16, 1267105), (20, 1013684), (28, 724060), (35, 579248), (40, 506842), (41, 494480), (56, 362030), (70, 289624), (80, 253421), (82, 247240), (112, 181015), (140, 144812), (164, 123620), (205, 98896), (280, 72406), (287, 70640), (328, 61810), (410, 49448), (560, 36203), (574, 35320), (656, 30905), (820, 24724), (883, 22960), (1148, 17660), (1435, 14128), (1640, 12362), (1766, 11480), (2296, 8830), (2870, 7064), (3280, 6181), (3532, 5740), (4415, 4592)]