20723778855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{14779}}^1$

素因数の和:14870

約数の個数: 128

約数和(自身を含む): 42906931200

約数和(自身を除く): 22183152345

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 47, 51, 65, 85, 117, 135, 141, 153, 195, 221, 235, 255, 351, 423, 459, 585, 611, 663, 705, 765, 799, 1105, 1269, 1755, 1833, 1989, 2115, 2295, 2397, 3055, 3315, 3995, 5499, 5967, 6345, 7191, 9165, 9945, 10387, 11985, 14779, 16497, 21573, 27495, 29835, 31161, 35955, 44337, 51935, 73895, 82485, 93483, 107865, 133011, 155805, 192127, 221685, 251243, 280449, 399033, 467415, 576381, 665055, 694613, 753729, 960635, 1256215, 1402245, 1729143, 1995165, 2083839, 2261187, 2881905, 3266159, 3473065, 3768645, 5187429, 6251517, 6783561, 8645715, 9029969, 9798477, 10419195, 11305935, 11808421, 16330795, 18754551, 25937145, 27089907, 29395431, 31257585, 33917805, 35425263, 45149845, 48992385, 59042105, 81269721, 88186293, 93772755, 106275789, 135449535, 146977155, 153509473, 177126315, 243809163, 318827367, 406348605, 440931465, 460528419, 531378945, 767547365, 1219045815, 1381585257, 1594136835, 2302642095, 4144755771, 6907926285, 20723778855]

約数ペア:

[(1, 20723778855), (3, 6907926285), (5, 4144755771), (9, 2302642095), (13, 1594136835), (15, 1381585257), (17, 1219045815), (27, 767547365), (39, 531378945), (45, 460528419), (47, 440931465), (51, 406348605), (65, 318827367), (85, 243809163), (117, 177126315), (135, 153509473), (141, 146977155), (153, 135449535), (195, 106275789), (221, 93772755), (235, 88186293), (255, 81269721), (351, 59042105), (423, 48992385), (459, 45149845), (585, 35425263), (611, 33917805), (663, 31257585), (705, 29395431), (765, 27089907), (799, 25937145), (1105, 18754551), (1269, 16330795), (1755, 11808421), (1833, 11305935), (1989, 10419195), (2115, 9798477), (2295, 9029969), (2397, 8645715), (3055, 6783561), (3315, 6251517), (3995, 5187429), (5499, 3768645), (5967, 3473065), (6345, 3266159), (7191, 2881905), (9165, 2261187), (9945, 2083839), (10387, 1995165), (11985, 1729143), (14779, 1402245), (16497, 1256215), (21573, 960635), (27495, 753729), (29835, 694613), (31161, 665055), (35955, 576381), (44337, 467415), (51935, 399033), (73895, 280449), (82485, 251243), (93483, 221685), (107865, 192127), (133011, 155805)]