23221480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 54996480

約数和(自身を除く): 31775000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 307, 310, 488, 610, 614, 620, 1220, 1228, 1240, 1535, 1891, 2440, 2456, 3070, 3782, 6140, 7564, 9455, 9517, 12280, 15128, 18727, 18910, 19034, 37454, 37820, 38068, 47585, 74908, 75640, 76136, 93635, 95170, 149816, 187270, 190340, 374540, 380680, 580537, 749080, 1161074, 2322148, 2902685, 4644296, 5805370, 11610740, 23221480]

約数ペア:

[(1, 23221480), (2, 11610740), (4, 5805370), (5, 4644296), (8, 2902685), (10, 2322148), (20, 1161074), (31, 749080), (40, 580537), (61, 380680), (62, 374540), (122, 190340), (124, 187270), (155, 149816), (244, 95170), (248, 93635), (305, 76136), (307, 75640), (310, 74908), (488, 47585), (610, 38068), (614, 37820), (620, 37454), (1220, 19034), (1228, 18910), (1240, 18727), (1535, 15128), (1891, 12280), (2440, 9517), (2456, 9455), (3070, 7564), (3782, 6140)]