30989560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 82449360

約数和(自身を除く): 51459800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 97, 98, 140, 163, 194, 196, 245, 280, 326, 388, 392, 485, 490, 652, 679, 776, 815, 970, 980, 1141, 1304, 1358, 1630, 1940, 1960, 2282, 2716, 3260, 3395, 3880, 4564, 4753, 5432, 5705, 6520, 6790, 7987, 9128, 9506, 11410, 13580, 15811, 15974, 19012, 22820, 23765, 27160, 31622, 31948, 38024, 39935, 45640, 47530, 63244, 63896, 79055, 79870, 95060, 110677, 126488, 158110, 159740, 190120, 221354, 316220, 319480, 442708, 553385, 632440, 774739, 885416, 1106770, 1549478, 2213540, 3098956, 3873695, 4427080, 6197912, 7747390, 15494780, 30989560]

約数ペア:

[(1, 30989560), (2, 15494780), (4, 7747390), (5, 6197912), (7, 4427080), (8, 3873695), (10, 3098956), (14, 2213540), (20, 1549478), (28, 1106770), (35, 885416), (40, 774739), (49, 632440), (56, 553385), (70, 442708), (97, 319480), (98, 316220), (140, 221354), (163, 190120), (194, 159740), (196, 158110), (245, 126488), (280, 110677), (326, 95060), (388, 79870), (392, 79055), (485, 63896), (490, 63244), (652, 47530), (679, 45640), (776, 39935), (815, 38024), (970, 31948), (980, 31622), (1141, 27160), (1304, 23765), (1358, 22820), (1630, 19012), (1940, 15974), (1960, 15811), (2282, 13580), (2716, 11410), (3260, 9506), (3395, 9128), (3880, 7987), (4564, 6790), (4753, 6520), (5432, 5705)]