140984920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25357}}^1$

素因数の和:25507

約数の個数: 32

約数和(自身を含む): 319510800

約数和(自身を除く): 178525880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 25357, 50714, 101428, 126785, 202856, 253570, 507140, 1014280, 3524623, 7049246, 14098492, 17623115, 28196984, 35246230, 70492460, 140984920]

約数ペア:

[(1, 140984920), (2, 70492460), (4, 35246230), (5, 28196984), (8, 17623115), (10, 14098492), (20, 7049246), (40, 3524623), (139, 1014280), (278, 507140), (556, 253570), (695, 202856), (1112, 126785), (1390, 101428), (2780, 50714), (5560, 25357)]