28260080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5791}}^1$

素因数の和:5865

約数の個数: 40

約数和(自身を含む): 66793344

約数和(自身を除く): 38533264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5791, 11582, 23164, 28955, 46328, 57910, 92656, 115820, 231640, 353251, 463280, 706502, 1413004, 1766255, 2826008, 3532510, 5652016, 7065020, 14130040, 28260080]

約数ペア:

[(1, 28260080), (2, 14130040), (4, 7065020), (5, 5652016), (8, 3532510), (10, 2826008), (16, 1766255), (20, 1413004), (40, 706502), (61, 463280), (80, 353251), (122, 231640), (244, 115820), (305, 92656), (488, 57910), (610, 46328), (976, 28955), (1220, 23164), (2440, 11582), (4880, 5791)]