31439940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{74857}}^1$

素因数の和:74876

約数の個数: 48

約数和(自身を含む): 100609152

約数和(自身を除く): 69169212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 74857, 149714, 224571, 299428, 374285, 449142, 523999, 748570, 898284, 1047998, 1122855, 1497140, 1571997, 2095996, 2245710, 2619995, 3143994, 4491420, 5239990, 6287988, 7859985, 10479980, 15719970, 31439940]

約数ペア:

[(1, 31439940), (2, 15719970), (3, 10479980), (4, 7859985), (5, 6287988), (6, 5239990), (7, 4491420), (10, 3143994), (12, 2619995), (14, 2245710), (15, 2095996), (20, 1571997), (21, 1497140), (28, 1122855), (30, 1047998), (35, 898284), (42, 748570), (60, 523999), (70, 449142), (84, 374285), (105, 299428), (140, 224571), (210, 149714), (420, 74857)]