397800620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{4019}}^1$

素因数の和:4143

約数の個数: 72

約数和(自身を含む): 981635760

約数和(自身を除く): 583835140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 404, 490, 505, 707, 980, 1010, 1414, 2020, 2828, 3535, 4019, 4949, 7070, 8038, 9898, 14140, 16076, 19796, 20095, 24745, 28133, 40190, 49490, 56266, 80380, 98980, 112532, 140665, 196931, 281330, 393862, 405919, 562660, 787724, 811838, 984655, 1623676, 1969310, 2029595, 2841433, 3938620, 4059190, 5682866, 8118380, 11365732, 14207165, 19890031, 28414330, 39780062, 56828660, 79560124, 99450155, 198900310, 397800620]

約数ペア:

[(1, 397800620), (2, 198900310), (4, 99450155), (5, 79560124), (7, 56828660), (10, 39780062), (14, 28414330), (20, 19890031), (28, 14207165), (35, 11365732), (49, 8118380), (70, 5682866), (98, 4059190), (101, 3938620), (140, 2841433), (196, 2029595), (202, 1969310), (245, 1623676), (404, 984655), (490, 811838), (505, 787724), (707, 562660), (980, 405919), (1010, 393862), (1414, 281330), (2020, 196931), (2828, 140665), (3535, 112532), (4019, 98980), (4949, 80380), (7070, 56266), (8038, 49490), (9898, 40190), (14140, 28133), (16076, 24745), (19796, 20095)]