78978820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{677}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 175412160

約数和(自身を除く): 96433340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 307, 380, 614, 677, 1228, 1354, 1535, 2708, 3070, 3385, 5833, 6140, 6770, 11666, 12863, 13540, 23332, 25726, 29165, 51452, 58330, 64315, 116660, 128630, 207839, 257260, 415678, 831356, 1039195, 2078390, 3948941, 4156780, 7897882, 15795764, 19744705, 39489410, 78978820]

約数ペア:

[(1, 78978820), (2, 39489410), (4, 19744705), (5, 15795764), (10, 7897882), (19, 4156780), (20, 3948941), (38, 2078390), (76, 1039195), (95, 831356), (190, 415678), (307, 257260), (380, 207839), (614, 128630), (677, 116660), (1228, 64315), (1354, 58330), (1535, 51452), (2708, 29165), (3070, 25726), (3385, 23332), (5833, 13540), (6140, 12863), (6770, 11666)]