64879700

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{6299}}^1$

素因数の和:6416

約数の個数: 36

約数和(自身を含む): 142178400

約数和(自身を除く): 77298700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2575, 5150, 6299, 10300, 12598, 25196, 31495, 62990, 125980, 157475, 314950, 629900, 648797, 1297594, 2595188, 3243985, 6487970, 12975940, 16219925, 32439850, 64879700]

約数ペア:

[(1, 64879700), (2, 32439850), (4, 16219925), (5, 12975940), (10, 6487970), (20, 3243985), (25, 2595188), (50, 1297594), (100, 648797), (103, 629900), (206, 314950), (412, 157475), (515, 125980), (1030, 62990), (2060, 31495), (2575, 25196), (5150, 12598), (6299, 10300)]