2920980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 8285760

約数和(自身を除く): 5364780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 547, 890, 1068, 1094, 1335, 1641, 1780, 2188, 2670, 2735, 3282, 5340, 5470, 6564, 8205, 10940, 16410, 32820, 48683, 97366, 146049, 194732, 243415, 292098, 486830, 584196, 730245, 973660, 1460490, 2920980]

約数ペア:

[(1, 2920980), (2, 1460490), (3, 973660), (4, 730245), (5, 584196), (6, 486830), (10, 292098), (12, 243415), (15, 194732), (20, 146049), (30, 97366), (60, 48683), (89, 32820), (178, 16410), (267, 10940), (356, 8205), (445, 6564), (534, 5470), (547, 5340), (890, 3282), (1068, 2735), (1094, 2670), (1335, 2188), (1641, 1780)]