1288672040

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{103591}}^1$

素因数の和:103913

約数の個数: 32

約数和(自身を含む): 2908863360

約数和(自身を除く): 1620191320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 103591, 207182, 414364, 517955, 828728, 1035910, 2071820, 4143640, 32216801, 64433602, 128867204, 161084005, 257734408, 322168010, 644336020, 1288672040]

約数ペア:

[(1, 1288672040), (2, 644336020), (4, 322168010), (5, 257734408), (8, 161084005), (10, 128867204), (20, 64433602), (40, 32216801), (311, 4143640), (622, 2071820), (1244, 1035910), (1555, 828728), (2488, 517955), (3110, 414364), (6220, 207182), (12440, 103591)]