258891780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{616409}}^1$

素因数の和:616428

約数の個数: 48

約数和(自身を含む): 828455040

約数和(自身を除く): 569563260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 616409, 1232818, 1849227, 2465636, 3082045, 3698454, 4314863, 6164090, 7396908, 8629726, 9246135, 12328180, 12944589, 17259452, 18492270, 21574315, 25889178, 36984540, 43148630, 51778356, 64722945, 86297260, 129445890, 258891780]

約数ペア:

[(1, 258891780), (2, 129445890), (3, 86297260), (4, 64722945), (5, 51778356), (6, 43148630), (7, 36984540), (10, 25889178), (12, 21574315), (14, 18492270), (15, 17259452), (20, 12944589), (21, 12328180), (28, 9246135), (30, 8629726), (35, 7396908), (42, 6164090), (60, 4314863), (70, 3698454), (84, 3082045), (105, 2465636), (140, 1849227), (210, 1232818), (420, 616409)]