80203120

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3203}}^1$

素因数の和:3529

約数の個数: 40

約数和(自身を含む): 187126416

約数和(自身を除く): 106923296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 3203, 5008, 6260, 6406, 12520, 12812, 16015, 25040, 25624, 32030, 51248, 64060, 128120, 256240, 1002539, 2005078, 4010156, 5012695, 8020312, 10025390, 16040624, 20050780, 40101560, 80203120]

約数ペア:

[(1, 80203120), (2, 40101560), (4, 20050780), (5, 16040624), (8, 10025390), (10, 8020312), (16, 5012695), (20, 4010156), (40, 2005078), (80, 1002539), (313, 256240), (626, 128120), (1252, 64060), (1565, 51248), (2504, 32030), (3130, 25624), (3203, 25040), (5008, 16015), (6260, 12812), (6406, 12520)]