306831420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{243517}}^1$

素因数の和:243539

約数の個数: 72

約数和(自身を含む): 1063686624

約数和(自身を除く): 756855204

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 243517, 487034, 730551, 974068, 1217585, 1461102, 1704619, 2191653, 2435170, 2922204, 3409238, 3652755, 4383306, 4870340, 5113857, 6818476, 7305510, 8523095, 8766612, 10227714, 10958265, 14611020, 15341571, 17046190, 20455428, 21916530, 25569285, 30683142, 34092380, 43833060, 51138570, 61366284, 76707855, 102277140, 153415710, 306831420]

約数ペア:

[(1, 306831420), (2, 153415710), (3, 102277140), (4, 76707855), (5, 61366284), (6, 51138570), (7, 43833060), (9, 34092380), (10, 30683142), (12, 25569285), (14, 21916530), (15, 20455428), (18, 17046190), (20, 15341571), (21, 14611020), (28, 10958265), (30, 10227714), (35, 8766612), (36, 8523095), (42, 7305510), (45, 6818476), (60, 5113857), (63, 4870340), (70, 4383306), (84, 3652755), (90, 3409238), (105, 2922204), (126, 2435170), (140, 2191653), (180, 1704619), (210, 1461102), (252, 1217585), (315, 974068), (420, 730551), (630, 487034), (1260, 243517)]