12839960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6551}}^1$

素因数の和:6576

約数の個数: 48

約数和(自身を含む): 33611760

約数和(自身を除く): 20771800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6551, 13102, 26204, 32755, 45857, 52408, 65510, 91714, 131020, 183428, 229285, 262040, 320999, 366856, 458570, 641998, 917140, 1283996, 1604995, 1834280, 2567992, 3209990, 6419980, 12839960]

約数ペア:

[(1, 12839960), (2, 6419980), (4, 3209990), (5, 2567992), (7, 1834280), (8, 1604995), (10, 1283996), (14, 917140), (20, 641998), (28, 458570), (35, 366856), (40, 320999), (49, 262040), (56, 229285), (70, 183428), (98, 131020), (140, 91714), (196, 65510), (245, 52408), (280, 45857), (392, 32755), (490, 26204), (980, 13102), (1960, 6551)]