20868990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4021}}^1$

素因数の和:4204

約数の個数: 32

約数和(自身を含む): 50387616

約数和(自身を除く): 29518626

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 173, 346, 519, 865, 1038, 1730, 2595, 4021, 5190, 8042, 12063, 20105, 24126, 40210, 60315, 120630, 695633, 1391266, 2086899, 3478165, 4173798, 6956330, 10434495, 20868990]

約数ペア:

[(1, 20868990), (2, 10434495), (3, 6956330), (5, 4173798), (6, 3478165), (10, 2086899), (15, 1391266), (30, 695633), (173, 120630), (346, 60315), (519, 40210), (865, 24126), (1038, 20105), (1730, 12063), (2595, 8042), (4021, 5190)]