13313840

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1021}}^1$

素因数の和:1197

約数の個数: 40

約数和(自身を含む): 31175088

約数和(自身を除く): 17861248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1021, 1304, 1630, 2042, 2608, 3260, 4084, 5105, 6520, 8168, 10210, 13040, 16336, 20420, 40840, 81680, 166423, 332846, 665692, 832115, 1331384, 1664230, 2662768, 3328460, 6656920, 13313840]

約数ペア:

[(1, 13313840), (2, 6656920), (4, 3328460), (5, 2662768), (8, 1664230), (10, 1331384), (16, 832115), (20, 665692), (40, 332846), (80, 166423), (163, 81680), (326, 40840), (652, 20420), (815, 16336), (1021, 13040), (1304, 10210), (1630, 8168), (2042, 6520), (2608, 5105), (3260, 4084)]