40404280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1408

約数の個数: 64

約数和(自身を含む): 104898240

約数和(自身を除く): 64493960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 1130, 1277, 1582, 2260, 2554, 3164, 3955, 4520, 5108, 6328, 6385, 7910, 8939, 10216, 12770, 15820, 17878, 25540, 31640, 35756, 44695, 51080, 71512, 89390, 144301, 178780, 288602, 357560, 577204, 721505, 1010107, 1154408, 1443010, 2020214, 2886020, 4040428, 5050535, 5772040, 8080856, 10101070, 20202140, 40404280]

約数ペア:

[(1, 40404280), (2, 20202140), (4, 10101070), (5, 8080856), (7, 5772040), (8, 5050535), (10, 4040428), (14, 2886020), (20, 2020214), (28, 1443010), (35, 1154408), (40, 1010107), (56, 721505), (70, 577204), (113, 357560), (140, 288602), (226, 178780), (280, 144301), (452, 89390), (565, 71512), (791, 51080), (904, 44695), (1130, 35756), (1277, 31640), (1582, 25540), (2260, 17878), (2554, 15820), (3164, 12770), (3955, 10216), (4520, 8939), (5108, 7910), (6328, 6385)]