128098820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{673}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 279003648

約数和(自身を除く): 150904828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 307, 310, 614, 620, 673, 1228, 1346, 1535, 2692, 3070, 3365, 6140, 6730, 9517, 13460, 19034, 20863, 38068, 41726, 47585, 83452, 95170, 104315, 190340, 206611, 208630, 413222, 417260, 826444, 1033055, 2066110, 4132220, 6404941, 12809882, 25619764, 32024705, 64049410, 128098820]

約数ペア:

[(1, 128098820), (2, 64049410), (4, 32024705), (5, 25619764), (10, 12809882), (20, 6404941), (31, 4132220), (62, 2066110), (124, 1033055), (155, 826444), (307, 417260), (310, 413222), (614, 208630), (620, 206611), (673, 190340), (1228, 104315), (1346, 95170), (1535, 83452), (2692, 47585), (3070, 41726), (3365, 38068), (6140, 20863), (6730, 19034), (9517, 13460)]