388517420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{5749}}^1$

素因数の和:5898

約数の個数: 48

約数和(自身を含む): 850080000

約数和(自身を除く): 461562580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 1090, 2180, 3379, 5749, 6758, 11498, 13516, 16895, 22996, 28745, 33790, 57490, 67580, 114980, 178219, 356438, 626641, 712876, 891095, 1253282, 1782190, 2506564, 3133205, 3564380, 6266410, 12532820, 19425871, 38851742, 77703484, 97129355, 194258710, 388517420]

約数ペア:

[(1, 388517420), (2, 194258710), (4, 97129355), (5, 77703484), (10, 38851742), (20, 19425871), (31, 12532820), (62, 6266410), (109, 3564380), (124, 3133205), (155, 2506564), (218, 1782190), (310, 1253282), (436, 891095), (545, 712876), (620, 626641), (1090, 356438), (2180, 178219), (3379, 114980), (5749, 67580), (6758, 57490), (11498, 33790), (13516, 28745), (16895, 22996)]