129213420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{307651}}^1$

素因数の和:307670

約数の個数: 48

約数和(自身を含む): 413484288

約数和(自身を除く): 284270868

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, 307651, 615302, 922953, 1230604, 1538255, 1845906, 2153557, 3076510, 3691812, 4307114, 4614765, 6153020, 6460671, 8614228, 9229530, 10767785, 12921342, 18459060, 21535570, 25842684, 32303355, 43071140, 64606710, 129213420]

約数ペア:

[(1, 129213420), (2, 64606710), (3, 43071140), (4, 32303355), (5, 25842684), (6, 21535570), (7, 18459060), (10, 12921342), (12, 10767785), (14, 9229530), (15, 8614228), (20, 6460671), (21, 6153020), (28, 4614765), (30, 4307114), (35, 3691812), (42, 3076510), (60, 2153557), (70, 1845906), (84, 1538255), (105, 1230604), (140, 922953), (210, 615302), (420, 307651)]