389970840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{464251}}^1$

素因数の和:464272

約数の個数: 64

約数和(自身を含む): 1337045760

約数和(自身を除く): 947074920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 464251, 928502, 1392753, 1857004, 2321255, 2785506, 3249757, 3714008, 4642510, 5571012, 6499514, 6963765, 9285020, 9749271, 11142024, 12999028, 13927530, 16248785, 18570040, 19498542, 25998056, 27855060, 32497570, 38997084, 48746355, 55710120, 64995140, 77994168, 97492710, 129990280, 194985420, 389970840]

約数ペア:

[(1, 389970840), (2, 194985420), (3, 129990280), (4, 97492710), (5, 77994168), (6, 64995140), (7, 55710120), (8, 48746355), (10, 38997084), (12, 32497570), (14, 27855060), (15, 25998056), (20, 19498542), (21, 18570040), (24, 16248785), (28, 13927530), (30, 12999028), (35, 11142024), (40, 9749271), (42, 9285020), (56, 6963765), (60, 6499514), (70, 5571012), (84, 4642510), (105, 3714008), (120, 3249757), (140, 2785506), (168, 2321255), (210, 1857004), (280, 1392753), (420, 928502), (840, 464251)]