25407560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 60955200

約数和(自身を除く): 35547640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 331, 380, 404, 505, 662, 760, 808, 1010, 1324, 1655, 1919, 2020, 2648, 3310, 3838, 4040, 6289, 6620, 7676, 9595, 12578, 13240, 15352, 19190, 25156, 31445, 33431, 38380, 50312, 62890, 66862, 76760, 125780, 133724, 167155, 251560, 267448, 334310, 635189, 668620, 1270378, 1337240, 2540756, 3175945, 5081512, 6351890, 12703780, 25407560]

約数ペア:

[(1, 25407560), (2, 12703780), (4, 6351890), (5, 5081512), (8, 3175945), (10, 2540756), (19, 1337240), (20, 1270378), (38, 668620), (40, 635189), (76, 334310), (95, 267448), (101, 251560), (152, 167155), (190, 133724), (202, 125780), (331, 76760), (380, 66862), (404, 62890), (505, 50312), (662, 38380), (760, 33431), (808, 31445), (1010, 25156), (1324, 19190), (1655, 15352), (1919, 13240), (2020, 12578), (2648, 9595), (3310, 7676), (3838, 6620), (4040, 6289)]