3897460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 9853704

約数和(自身を除く): 5956244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 97, 98, 140, 164, 194, 196, 205, 245, 287, 388, 410, 485, 490, 574, 679, 820, 970, 980, 1148, 1358, 1435, 1940, 2009, 2716, 2870, 3395, 3977, 4018, 4753, 5740, 6790, 7954, 8036, 9506, 10045, 13580, 15908, 19012, 19885, 20090, 23765, 27839, 39770, 40180, 47530, 55678, 79540, 95060, 111356, 139195, 194873, 278390, 389746, 556780, 779492, 974365, 1948730, 3897460]

約数ペア:

[(1, 3897460), (2, 1948730), (4, 974365), (5, 779492), (7, 556780), (10, 389746), (14, 278390), (20, 194873), (28, 139195), (35, 111356), (41, 95060), (49, 79540), (70, 55678), (82, 47530), (97, 40180), (98, 39770), (140, 27839), (164, 23765), (194, 20090), (196, 19885), (205, 19012), (245, 15908), (287, 13580), (388, 10045), (410, 9506), (485, 8036), (490, 7954), (574, 6790), (679, 5740), (820, 4753), (970, 4018), (980, 3977), (1148, 3395), (1358, 2870), (1435, 2716), (1940, 2009)]