138972474

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:899

約数の個数: 48

約数和(自身を含む): 309566400

約数和(自身を除く): 170593926

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 409, 439, 774, 818, 878, 1227, 1317, 2454, 2634, 3681, 3951, 7362, 7902, 17587, 18877, 35174, 37754, 52761, 56631, 105522, 113262, 158283, 169893, 179551, 316566, 339786, 359102, 538653, 1077306, 1615959, 3231918, 7720693, 15441386, 23162079, 46324158, 69486237, 138972474]

約数ペア:

[(1, 138972474), (2, 69486237), (3, 46324158), (6, 23162079), (9, 15441386), (18, 7720693), (43, 3231918), (86, 1615959), (129, 1077306), (258, 538653), (387, 359102), (409, 339786), (439, 316566), (774, 179551), (818, 169893), (878, 158283), (1227, 113262), (1317, 105522), (2454, 56631), (2634, 52761), (3681, 37754), (3951, 35174), (7362, 18877), (7902, 17587)]