28753380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17749}}^1$

素因数の和:17770

約数の個数: 60

約数和(自身を含む): 90205500

約数和(自身を除く): 61452120

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17749, 35498, 53247, 70996, 88745, 106494, 159741, 177490, 212988, 266235, 319482, 354980, 479223, 532470, 638964, 798705, 958446, 1064940, 1437669, 1597410, 1916892, 2396115, 2875338, 3194820, 4792230, 5750676, 7188345, 9584460, 14376690, 28753380]

約数ペア:

[(1, 28753380), (2, 14376690), (3, 9584460), (4, 7188345), (5, 5750676), (6, 4792230), (9, 3194820), (10, 2875338), (12, 2396115), (15, 1916892), (18, 1597410), (20, 1437669), (27, 1064940), (30, 958446), (36, 798705), (45, 638964), (54, 532470), (60, 479223), (81, 354980), (90, 319482), (108, 266235), (135, 212988), (162, 177490), (180, 159741), (270, 106494), (324, 88745), (405, 70996), (540, 53247), (810, 35498), (1620, 17749)]