20205304

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 25321736

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 103, 113, 124, 206, 217, 226, 248, 412, 434, 452, 721, 791, 824, 868, 904, 1442, 1582, 1736, 2884, 3164, 3193, 3503, 5768, 6328, 6386, 7006, 11639, 12772, 14012, 22351, 23278, 24521, 25544, 28024, 44702, 46556, 49042, 81473, 89404, 93112, 98084, 162946, 178808, 196168, 325892, 360809, 651784, 721618, 1443236, 2525663, 2886472, 5051326, 10102652, 20205304]

約数ペア:

[(1, 20205304), (2, 10102652), (4, 5051326), (7, 2886472), (8, 2525663), (14, 1443236), (28, 721618), (31, 651784), (56, 360809), (62, 325892), (103, 196168), (113, 178808), (124, 162946), (206, 98084), (217, 93112), (226, 89404), (248, 81473), (412, 49042), (434, 46556), (452, 44702), (721, 28024), (791, 25544), (824, 24521), (868, 23278), (904, 22351), (1442, 14012), (1582, 12772), (1736, 11639), (2884, 7006), (3164, 6386), (3193, 6328), (3503, 5768)]