71988420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{171401}}^1$

素因数の和:171420

約数の個数: 48

約数和(自身を含む): 230364288

約数和(自身を除く): 158375868

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, 171401, 342802, 514203, 685604, 857005, 1028406, 1199807, 1714010, 2056812, 2399614, 2571015, 3428020, 3599421, 4799228, 5142030, 5999035, 7198842, 10284060, 11998070, 14397684, 17997105, 23996140, 35994210, 71988420]

約数ペア:

[(1, 71988420), (2, 35994210), (3, 23996140), (4, 17997105), (5, 14397684), (6, 11998070), (7, 10284060), (10, 7198842), (12, 5999035), (14, 5142030), (15, 4799228), (20, 3599421), (21, 3428020), (28, 2571015), (30, 2399614), (35, 2056812), (42, 1714010), (60, 1199807), (70, 1028406), (84, 857005), (105, 685604), (140, 514203), (210, 342802), (420, 171401)]