13400680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 31726080

約数和(自身を除く): 18325400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 107, 124, 155, 202, 214, 248, 310, 404, 428, 505, 535, 620, 808, 856, 1010, 1070, 1240, 2020, 2140, 3131, 3317, 4040, 4280, 6262, 6634, 10807, 12524, 13268, 15655, 16585, 21614, 25048, 26536, 31310, 33170, 43228, 54035, 62620, 66340, 86456, 108070, 125240, 132680, 216140, 335017, 432280, 670034, 1340068, 1675085, 2680136, 3350170, 6700340, 13400680]

約数ペア:

[(1, 13400680), (2, 6700340), (4, 3350170), (5, 2680136), (8, 1675085), (10, 1340068), (20, 670034), (31, 432280), (40, 335017), (62, 216140), (101, 132680), (107, 125240), (124, 108070), (155, 86456), (202, 66340), (214, 62620), (248, 54035), (310, 43228), (404, 33170), (428, 31310), (505, 26536), (535, 25048), (620, 21614), (808, 16585), (856, 15655), (1010, 13268), (1070, 12524), (1240, 10807), (2020, 6634), (2140, 6262), (3131, 4280), (3317, 4040)]