539980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:71

約数の個数: 72

約数和(自身を含む): 1436400

約数和(自身を除く): 896420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 29, 35, 38, 49, 58, 70, 76, 95, 98, 116, 133, 140, 145, 190, 196, 203, 245, 266, 290, 380, 406, 490, 532, 551, 580, 665, 812, 931, 980, 1015, 1102, 1330, 1421, 1862, 2030, 2204, 2660, 2755, 2842, 3724, 3857, 4060, 4655, 5510, 5684, 7105, 7714, 9310, 11020, 14210, 15428, 18620, 19285, 26999, 28420, 38570, 53998, 77140, 107996, 134995, 269990, 539980]

約数ペア:

[(1, 539980), (2, 269990), (4, 134995), (5, 107996), (7, 77140), (10, 53998), (14, 38570), (19, 28420), (20, 26999), (28, 19285), (29, 18620), (35, 15428), (38, 14210), (49, 11020), (58, 9310), (70, 7714), (76, 7105), (95, 5684), (98, 5510), (116, 4655), (133, 4060), (140, 3857), (145, 3724), (190, 2842), (196, 2755), (203, 2660), (245, 2204), (266, 2030), (290, 1862), (380, 1421), (406, 1330), (490, 1102), (532, 1015), (551, 980), (580, 931), (665, 812)]