155378020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{479}}^1$

素因数の和:833

約数の個数: 72

約数和(自身を含む): 381507840

約数和(自身を除く): 226129820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 331, 479, 490, 662, 958, 980, 1324, 1655, 1916, 2317, 2395, 3310, 3353, 4634, 4790, 6620, 6706, 9268, 9580, 11585, 13412, 16219, 16765, 23170, 23471, 32438, 33530, 46340, 46942, 64876, 67060, 81095, 93884, 117355, 158549, 162190, 234710, 317098, 324380, 469420, 634196, 792745, 1109843, 1585490, 2219686, 3170980, 4439372, 5549215, 7768901, 11098430, 15537802, 22196860, 31075604, 38844505, 77689010, 155378020]

約数ペア:

[(1, 155378020), (2, 77689010), (4, 38844505), (5, 31075604), (7, 22196860), (10, 15537802), (14, 11098430), (20, 7768901), (28, 5549215), (35, 4439372), (49, 3170980), (70, 2219686), (98, 1585490), (140, 1109843), (196, 792745), (245, 634196), (331, 469420), (479, 324380), (490, 317098), (662, 234710), (958, 162190), (980, 158549), (1324, 117355), (1655, 93884), (1916, 81095), (2317, 67060), (2395, 64876), (3310, 46942), (3353, 46340), (4634, 33530), (4790, 32438), (6620, 23471), (6706, 23170), (9268, 16765), (9580, 16219), (11585, 13412)]