20879910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4549}}^1$

素因数の和:4582

約数の個数: 64

約数和(自身を含む): 58968000

約数和(自身を除く): 38088090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 85, 90, 102, 135, 153, 170, 255, 270, 306, 459, 510, 765, 918, 1530, 2295, 4549, 4590, 9098, 13647, 22745, 27294, 40941, 45490, 68235, 77333, 81882, 122823, 136470, 154666, 204705, 231999, 245646, 386665, 409410, 463998, 614115, 695997, 773330, 1159995, 1228230, 1391994, 2087991, 2319990, 3479985, 4175982, 6959970, 10439955, 20879910]

約数ペア:

[(1, 20879910), (2, 10439955), (3, 6959970), (5, 4175982), (6, 3479985), (9, 2319990), (10, 2087991), (15, 1391994), (17, 1228230), (18, 1159995), (27, 773330), (30, 695997), (34, 614115), (45, 463998), (51, 409410), (54, 386665), (85, 245646), (90, 231999), (102, 204705), (135, 154666), (153, 136470), (170, 122823), (255, 81882), (270, 77333), (306, 68235), (459, 45490), (510, 40941), (765, 27294), (918, 22745), (1530, 13647), (2295, 9098), (4549, 4590)]