5156980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 11712960

約数和(自身を除く): 6555980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 331, 380, 410, 662, 779, 820, 1324, 1558, 1655, 3116, 3310, 3895, 6289, 6620, 7790, 12578, 13571, 15580, 25156, 27142, 31445, 54284, 62890, 67855, 125780, 135710, 257849, 271420, 515698, 1031396, 1289245, 2578490, 5156980]

約数ペア:

[(1, 5156980), (2, 2578490), (4, 1289245), (5, 1031396), (10, 515698), (19, 271420), (20, 257849), (38, 135710), (41, 125780), (76, 67855), (82, 62890), (95, 54284), (164, 31445), (190, 27142), (205, 25156), (331, 15580), (380, 13571), (410, 12578), (662, 7790), (779, 6620), (820, 6289), (1324, 3895), (1558, 3310), (1655, 3116)]