69979980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{166619}}^1$

素因数の和:166638

約数の個数: 48

約数和(自身を含む): 223937280

約数和(自身を除く): 153957300

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, 166619, 333238, 499857, 666476, 833095, 999714, 1166333, 1666190, 1999428, 2332666, 2499285, 3332380, 3498999, 4665332, 4998570, 5831665, 6997998, 9997140, 11663330, 13995996, 17494995, 23326660, 34989990, 69979980]

約数ペア:

[(1, 69979980), (2, 34989990), (3, 23326660), (4, 17494995), (5, 13995996), (6, 11663330), (7, 9997140), (10, 6997998), (12, 5831665), (14, 4998570), (15, 4665332), (20, 3498999), (21, 3332380), (28, 2499285), (30, 2332666), (35, 1999428), (42, 1666190), (60, 1166333), (70, 999714), (84, 833095), (105, 666476), (140, 499857), (210, 333238), (420, 166619)]