13781740

素因数分解:

$2^2\times 5^1\times 7^5\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 34588512

約数和(自身を除く): 20806772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 343, 410, 490, 574, 686, 820, 980, 1148, 1372, 1435, 1715, 2009, 2401, 2870, 3430, 4018, 4802, 5740, 6860, 8036, 9604, 10045, 12005, 14063, 16807, 20090, 24010, 28126, 33614, 40180, 48020, 56252, 67228, 70315, 84035, 98441, 140630, 168070, 196882, 281260, 336140, 393764, 492205, 689087, 984410, 1378174, 1968820, 2756348, 3445435, 6890870, 13781740]

約数ペア:

[(1, 13781740), (2, 6890870), (4, 3445435), (5, 2756348), (7, 1968820), (10, 1378174), (14, 984410), (20, 689087), (28, 492205), (35, 393764), (41, 336140), (49, 281260), (70, 196882), (82, 168070), (98, 140630), (140, 98441), (164, 84035), (196, 70315), (205, 67228), (245, 56252), (287, 48020), (343, 40180), (410, 33614), (490, 28126), (574, 24010), (686, 20090), (820, 16807), (980, 14063), (1148, 12005), (1372, 10045), (1435, 9604), (1715, 8036), (2009, 6860), (2401, 5740), (2870, 4802), (3430, 4018)]