2821260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3617}}^1$

素因数の和:3642

約数の個数: 48

約数和(自身を含む): 8509536

約数和(自身を除く): 5688276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 3617, 7234, 10851, 14468, 18085, 21702, 36170, 43404, 47021, 54255, 72340, 94042, 108510, 141063, 188084, 217020, 235105, 282126, 470210, 564252, 705315, 940420, 1410630, 2821260]

約数ペア:

[(1, 2821260), (2, 1410630), (3, 940420), (4, 705315), (5, 564252), (6, 470210), (10, 282126), (12, 235105), (13, 217020), (15, 188084), (20, 141063), (26, 108510), (30, 94042), (39, 72340), (52, 54255), (60, 47021), (65, 43404), (78, 36170), (130, 21702), (156, 18085), (195, 14468), (260, 10851), (390, 7234), (780, 3617)]