15494780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 38476368

約数和(自身を除く): 22981588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 163, 194, 196, 245, 326, 388, 485, 490, 652, 679, 815, 970, 980, 1141, 1358, 1630, 1940, 2282, 2716, 3260, 3395, 4564, 4753, 5705, 6790, 7987, 9506, 11410, 13580, 15811, 15974, 19012, 22820, 23765, 31622, 31948, 39935, 47530, 63244, 79055, 79870, 95060, 110677, 158110, 159740, 221354, 316220, 442708, 553385, 774739, 1106770, 1549478, 2213540, 3098956, 3873695, 7747390, 15494780]

約数ペア:

[(1, 15494780), (2, 7747390), (4, 3873695), (5, 3098956), (7, 2213540), (10, 1549478), (14, 1106770), (20, 774739), (28, 553385), (35, 442708), (49, 316220), (70, 221354), (97, 159740), (98, 158110), (140, 110677), (163, 95060), (194, 79870), (196, 79055), (245, 63244), (326, 47530), (388, 39935), (485, 31948), (490, 31622), (652, 23765), (679, 22820), (815, 19012), (970, 15974), (980, 15811), (1141, 13580), (1358, 11410), (1630, 9506), (1940, 7987), (2282, 6790), (2716, 5705), (3260, 4753), (3395, 4564)]