389970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{619}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 1160640

約数和(自身を除く): 770670

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 619, 630, 1238, 1857, 3095, 3714, 4333, 5571, 6190, 8666, 9285, 11142, 12999, 18570, 21665, 25998, 27855, 38997, 43330, 55710, 64995, 77994, 129990, 194985, 389970]

約数ペア:

[(1, 389970), (2, 194985), (3, 129990), (5, 77994), (6, 64995), (7, 55710), (9, 43330), (10, 38997), (14, 27855), (15, 25998), (18, 21665), (21, 18570), (30, 12999), (35, 11142), (42, 9285), (45, 8666), (63, 6190), (70, 5571), (90, 4333), (105, 3714), (126, 3095), (210, 1857), (315, 1238), (619, 630)]