6419980

素因数分解:

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

素因数の和:6574

約数の個数: 36

約数和(自身を含む): 15685488

約数和(自身を除く): 9265508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 6551, 13102, 26204, 32755, 45857, 65510, 91714, 131020, 183428, 229285, 320999, 458570, 641998, 917140, 1283996, 1604995, 3209990, 6419980]

約数ペア:

[(1, 6419980), (2, 3209990), (4, 1604995), (5, 1283996), (7, 917140), (10, 641998), (14, 458570), (20, 320999), (28, 229285), (35, 183428), (49, 131020), (70, 91714), (98, 65510), (140, 45857), (196, 32755), (245, 26204), (490, 13102), (980, 6551)]