289969505

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 424364544

約数和(自身を除く): 134395039

約数列:

[1, 5, 7, 31, 35, 49, 73, 155, 217, 245, 365, 511, 523, 1085, 1519, 2263, 2555, 2615, 3577, 3661, 7595, 11315, 15841, 16213, 17885, 18305, 25627, 38179, 79205, 81065, 110887, 113491, 128135, 190895, 267253, 554435, 567455, 794437, 1183549, 1336265, 1870771, 3972185, 5917745, 8284843, 9353855, 41424215, 57993901, 289969505]

約数ペア:

[(1, 289969505), (5, 57993901), (7, 41424215), (31, 9353855), (35, 8284843), (49, 5917745), (73, 3972185), (155, 1870771), (217, 1336265), (245, 1183549), (365, 794437), (511, 567455), (523, 554435), (1085, 267253), (1519, 190895), (2263, 128135), (2555, 113491), (2615, 110887), (3577, 81065), (3661, 79205), (7595, 38179), (11315, 25627), (15841, 18305), (16213, 17885)]