25162520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 59119200

約数和(自身を除く): 33956680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 205, 229, 268, 328, 335, 410, 458, 536, 670, 820, 916, 1145, 1340, 1640, 1832, 2290, 2680, 2747, 4580, 5494, 9160, 9389, 10988, 13735, 15343, 18778, 21976, 27470, 30686, 37556, 46945, 54940, 61372, 75112, 76715, 93890, 109880, 122744, 153430, 187780, 306860, 375560, 613720, 629063, 1258126, 2516252, 3145315, 5032504, 6290630, 12581260, 25162520]

約数ペア:

[(1, 25162520), (2, 12581260), (4, 6290630), (5, 5032504), (8, 3145315), (10, 2516252), (20, 1258126), (40, 629063), (41, 613720), (67, 375560), (82, 306860), (134, 187780), (164, 153430), (205, 122744), (229, 109880), (268, 93890), (328, 76715), (335, 75112), (410, 61372), (458, 54940), (536, 46945), (670, 37556), (820, 30686), (916, 27470), (1145, 21976), (1340, 18778), (1640, 15343), (1832, 13735), (2290, 10988), (2680, 9389), (2747, 9160), (4580, 5494)]