398686960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2707}}^1$

素因数の和:2990

約数の個数: 80

約数和(自身を含む): 1063789056

約数和(自身を除く): 665102096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 263, 280, 526, 560, 1052, 1315, 1841, 2104, 2630, 2707, 3682, 4208, 5260, 5414, 7364, 9205, 10520, 10828, 13535, 14728, 18410, 18949, 21040, 21656, 27070, 29456, 36820, 37898, 43312, 54140, 73640, 75796, 94745, 108280, 147280, 151592, 189490, 216560, 303184, 378980, 711941, 757960, 1423882, 1515920, 2847764, 3559705, 4983587, 5695528, 7119410, 9967174, 11391056, 14238820, 19934348, 24917935, 28477640, 39868696, 49835870, 56955280, 79737392, 99671740, 199343480, 398686960]

約数ペア:

[(1, 398686960), (2, 199343480), (4, 99671740), (5, 79737392), (7, 56955280), (8, 49835870), (10, 39868696), (14, 28477640), (16, 24917935), (20, 19934348), (28, 14238820), (35, 11391056), (40, 9967174), (56, 7119410), (70, 5695528), (80, 4983587), (112, 3559705), (140, 2847764), (263, 1515920), (280, 1423882), (526, 757960), (560, 711941), (1052, 378980), (1315, 303184), (1841, 216560), (2104, 189490), (2630, 151592), (2707, 147280), (3682, 108280), (4208, 94745), (5260, 75796), (5414, 73640), (7364, 54140), (9205, 43312), (10520, 37898), (10828, 36820), (13535, 29456), (14728, 27070), (18410, 21656), (18949, 21040)]