140973980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1483}}^1$

素因数の和:1603

約数の個数: 72

約数和(自身を含む): 348164208

約数和(自身を除く): 207190228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 140, 194, 196, 245, 388, 485, 490, 679, 970, 980, 1358, 1483, 1940, 2716, 2966, 3395, 4753, 5932, 6790, 7415, 9506, 10381, 13580, 14830, 19012, 20762, 23765, 29660, 41524, 47530, 51905, 72667, 95060, 103810, 143851, 145334, 207620, 287702, 290668, 363335, 575404, 719255, 726670, 1006957, 1438510, 1453340, 2013914, 2877020, 4027828, 5034785, 7048699, 10069570, 14097398, 20139140, 28194796, 35243495, 70486990, 140973980]

約数ペア:

[(1, 140973980), (2, 70486990), (4, 35243495), (5, 28194796), (7, 20139140), (10, 14097398), (14, 10069570), (20, 7048699), (28, 5034785), (35, 4027828), (49, 2877020), (70, 2013914), (97, 1453340), (98, 1438510), (140, 1006957), (194, 726670), (196, 719255), (245, 575404), (388, 363335), (485, 290668), (490, 287702), (679, 207620), (970, 145334), (980, 143851), (1358, 103810), (1483, 95060), (1940, 72667), (2716, 51905), (2966, 47530), (3395, 41524), (4753, 29660), (5932, 23765), (6790, 20762), (7415, 19012), (9506, 14830), (10381, 13580)]