653820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 1941408

約数和(自身を除く): 1287588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 641, 1020, 1282, 1923, 2564, 3205, 3846, 6410, 7692, 9615, 10897, 12820, 19230, 21794, 32691, 38460, 43588, 54485, 65382, 108970, 130764, 163455, 217940, 326910, 653820]

約数ペア:

[(1, 653820), (2, 326910), (3, 217940), (4, 163455), (5, 130764), (6, 108970), (10, 65382), (12, 54485), (15, 43588), (17, 38460), (20, 32691), (30, 21794), (34, 19230), (51, 12820), (60, 10897), (68, 9615), (85, 7692), (102, 6410), (170, 3846), (204, 3205), (255, 2564), (340, 1923), (510, 1282), (641, 1020)]