80329400

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5657}}^1$

素因数の和:5744

約数の個数: 48

約数和(自身を含む): 189429840

約数和(自身を除く): 109100440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2840, 3550, 5657, 7100, 11314, 14200, 22628, 28285, 45256, 56570, 113140, 141425, 226280, 282850, 401647, 565700, 803294, 1131400, 1606588, 2008235, 3213176, 4016470, 8032940, 10041175, 16065880, 20082350, 40164700, 80329400]

約数ペア:

[(1, 80329400), (2, 40164700), (4, 20082350), (5, 16065880), (8, 10041175), (10, 8032940), (20, 4016470), (25, 3213176), (40, 2008235), (50, 1606588), (71, 1131400), (100, 803294), (142, 565700), (200, 401647), (284, 282850), (355, 226280), (568, 141425), (710, 113140), (1420, 56570), (1775, 45256), (2840, 28285), (3550, 22628), (5657, 14200), (7100, 11314)]