178439380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{4441}}^1$

素因数の和:4505

約数の個数: 72

約数和(自身を含む): 446634216

約数和(自身を除く): 268194836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 4441, 5740, 8036, 8882, 10045, 17764, 20090, 22205, 31087, 40180, 44410, 62174, 88820, 124348, 155435, 182081, 217609, 310870, 364162, 435218, 621740, 728324, 870436, 910405, 1088045, 1274567, 1820810, 2176090, 2549134, 3641620, 4352180, 5098268, 6372835, 8921969, 12745670, 17843938, 25491340, 35687876, 44609845, 89219690, 178439380]

約数ペア:

[(1, 178439380), (2, 89219690), (4, 44609845), (5, 35687876), (7, 25491340), (10, 17843938), (14, 12745670), (20, 8921969), (28, 6372835), (35, 5098268), (41, 4352180), (49, 3641620), (70, 2549134), (82, 2176090), (98, 1820810), (140, 1274567), (164, 1088045), (196, 910405), (205, 870436), (245, 728324), (287, 621740), (410, 435218), (490, 364162), (574, 310870), (820, 217609), (980, 182081), (1148, 155435), (1435, 124348), (2009, 88820), (2870, 62174), (4018, 44410), (4441, 40180), (5740, 31087), (8036, 22205), (8882, 20090), (10045, 17764)]