26881240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 63776160

約数和(自身を除く): 36894920

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 296, 328, 370, 410, 443, 740, 820, 886, 1480, 1517, 1640, 1772, 2215, 3034, 3544, 4430, 6068, 7585, 8860, 12136, 15170, 16391, 17720, 18163, 30340, 32782, 36326, 60680, 65564, 72652, 81955, 90815, 131128, 145304, 163910, 181630, 327820, 363260, 655640, 672031, 726520, 1344062, 2688124, 3360155, 5376248, 6720310, 13440620, 26881240]

約数ペア:

[(1, 26881240), (2, 13440620), (4, 6720310), (5, 5376248), (8, 3360155), (10, 2688124), (20, 1344062), (37, 726520), (40, 672031), (41, 655640), (74, 363260), (82, 327820), (148, 181630), (164, 163910), (185, 145304), (205, 131128), (296, 90815), (328, 81955), (370, 72652), (410, 65564), (443, 60680), (740, 36326), (820, 32782), (886, 30340), (1480, 18163), (1517, 17720), (1640, 16391), (1772, 15170), (2215, 12136), (3034, 8860), (3544, 7585), (4430, 6068)]