68757980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{56359}}^1$

素因数の和:56429

約数の個数: 24

約数和(自身を含む): 146761440

約数和(自身を除く): 78003460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 56359, 112718, 225436, 281795, 563590, 1127180, 3437899, 6875798, 13751596, 17189495, 34378990, 68757980]

約数ペア:

[(1, 68757980), (2, 34378990), (4, 17189495), (5, 13751596), (10, 6875798), (20, 3437899), (61, 1127180), (122, 563590), (244, 281795), (305, 225436), (610, 112718), (1220, 56359)]