20784028545

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{318749}}^1$

素因数の和:318796

約数の個数: 80

約数和(自身を含む): 44431200000

約数和(自身を除く): 23647171455

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 81, 105, 115, 135, 161, 189, 207, 315, 345, 405, 483, 567, 621, 805, 945, 1035, 1449, 1863, 2415, 2835, 3105, 4347, 7245, 9315, 13041, 21735, 65205, 318749, 956247, 1593745, 2231243, 2868741, 4781235, 6693729, 7331227, 8606223, 11156215, 14343705, 20081187, 21993681, 25818669, 33468645, 36656135, 43031115, 51318589, 60243561, 65981043, 100405935, 109968405, 129093345, 153955767, 180730683, 197943129, 256592945, 301217805, 329905215, 461867301, 593829387, 769778835, 903653415, 989715645, 1385601903, 2309336505, 2969146935, 4156805709, 6928009515, 20784028545]

約数ペア:

[(1, 20784028545), (3, 6928009515), (5, 4156805709), (7, 2969146935), (9, 2309336505), (15, 1385601903), (21, 989715645), (23, 903653415), (27, 769778835), (35, 593829387), (45, 461867301), (63, 329905215), (69, 301217805), (81, 256592945), (105, 197943129), (115, 180730683), (135, 153955767), (161, 129093345), (189, 109968405), (207, 100405935), (315, 65981043), (345, 60243561), (405, 51318589), (483, 43031115), (567, 36656135), (621, 33468645), (805, 25818669), (945, 21993681), (1035, 20081187), (1449, 14343705), (1863, 11156215), (2415, 8606223), (2835, 7331227), (3105, 6693729), (4347, 4781235), (7245, 2868741), (9315, 2231243), (13041, 1593745), (21735, 956247), (65205, 318749)]