10405540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 23284800

約数和(自身を除く): 12879260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 197, 278, 380, 394, 556, 695, 788, 985, 1390, 1970, 2641, 2780, 3743, 3940, 5282, 7486, 10564, 13205, 14972, 18715, 26410, 27383, 37430, 52820, 54766, 74860, 109532, 136915, 273830, 520277, 547660, 1040554, 2081108, 2601385, 5202770, 10405540]

約数ペア:

[(1, 10405540), (2, 5202770), (4, 2601385), (5, 2081108), (10, 1040554), (19, 547660), (20, 520277), (38, 273830), (76, 136915), (95, 109532), (139, 74860), (190, 54766), (197, 52820), (278, 37430), (380, 27383), (394, 26410), (556, 18715), (695, 14972), (788, 13205), (985, 10564), (1390, 7486), (1970, 5282), (2641, 3940), (2780, 3743)]