12251620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 26869248

約数和(自身を除く): 14617628

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 223, 268, 335, 410, 446, 670, 820, 892, 1115, 1340, 2230, 2747, 4460, 5494, 9143, 10988, 13735, 14941, 18286, 27470, 29882, 36572, 45715, 54940, 59764, 74705, 91430, 149410, 182860, 298820, 612581, 1225162, 2450324, 3062905, 6125810, 12251620]

約数ペア:

[(1, 12251620), (2, 6125810), (4, 3062905), (5, 2450324), (10, 1225162), (20, 612581), (41, 298820), (67, 182860), (82, 149410), (134, 91430), (164, 74705), (205, 59764), (223, 54940), (268, 45715), (335, 36572), (410, 29882), (446, 27470), (670, 18286), (820, 14941), (892, 13735), (1115, 10988), (1340, 9143), (2230, 5494), (2747, 4460)]