28939860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3739}}^1$

素因数の和:3797

約数の個数: 72

約数和(自身を含む): 89849760

約数和(自身を除く): 60909900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3739, 3870, 7478, 7740, 11217, 14956, 18695, 22434, 33651, 37390, 44868, 56085, 67302, 74780, 112170, 134604, 160777, 168255, 224340, 321554, 336510, 482331, 643108, 673020, 803885, 964662, 1446993, 1607770, 1929324, 2411655, 2893986, 3215540, 4823310, 5787972, 7234965, 9646620, 14469930, 28939860]

約数ペア:

[(1, 28939860), (2, 14469930), (3, 9646620), (4, 7234965), (5, 5787972), (6, 4823310), (9, 3215540), (10, 2893986), (12, 2411655), (15, 1929324), (18, 1607770), (20, 1446993), (30, 964662), (36, 803885), (43, 673020), (45, 643108), (60, 482331), (86, 336510), (90, 321554), (129, 224340), (172, 168255), (180, 160777), (215, 134604), (258, 112170), (387, 74780), (430, 67302), (516, 56085), (645, 44868), (774, 37390), (860, 33651), (1290, 22434), (1548, 18695), (1935, 14956), (2580, 11217), (3739, 7740), (3870, 7478)]