7889980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 19707408

約数和(自身を除く): 11817428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 97, 98, 140, 166, 194, 196, 245, 332, 388, 415, 485, 490, 581, 679, 830, 970, 980, 1162, 1358, 1660, 1940, 2324, 2716, 2905, 3395, 4067, 4753, 5810, 6790, 8051, 8134, 9506, 11620, 13580, 16102, 16268, 19012, 20335, 23765, 32204, 40255, 40670, 47530, 56357, 80510, 81340, 95060, 112714, 161020, 225428, 281785, 394499, 563570, 788998, 1127140, 1577996, 1972495, 3944990, 7889980]

約数ペア:

[(1, 7889980), (2, 3944990), (4, 1972495), (5, 1577996), (7, 1127140), (10, 788998), (14, 563570), (20, 394499), (28, 281785), (35, 225428), (49, 161020), (70, 112714), (83, 95060), (97, 81340), (98, 80510), (140, 56357), (166, 47530), (194, 40670), (196, 40255), (245, 32204), (332, 23765), (388, 20335), (415, 19012), (485, 16268), (490, 16102), (581, 13580), (679, 11620), (830, 9506), (970, 8134), (980, 8051), (1162, 6790), (1358, 5810), (1660, 4753), (1940, 4067), (2324, 3395), (2716, 2905)]