2345980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 6068160

約数和(自身を除く): 3722180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1289, 1820, 2578, 5156, 6445, 9023, 12890, 16757, 18046, 25780, 33514, 36092, 45115, 67028, 83785, 90230, 117299, 167570, 180460, 234598, 335140, 469196, 586495, 1172990, 2345980]

約数ペア:

[(1, 2345980), (2, 1172990), (4, 586495), (5, 469196), (7, 335140), (10, 234598), (13, 180460), (14, 167570), (20, 117299), (26, 90230), (28, 83785), (35, 67028), (52, 45115), (65, 36092), (70, 33514), (91, 25780), (130, 18046), (140, 16757), (182, 12890), (260, 9023), (364, 6445), (455, 5156), (910, 2578), (1289, 1820)]