20181564

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1487}}^1$

素因数の和:1539

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 36689796

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 116, 117, 156, 174, 234, 261, 348, 377, 468, 522, 754, 1044, 1131, 1487, 1508, 2262, 2974, 3393, 4461, 4524, 5948, 6786, 8922, 13383, 13572, 17844, 19331, 26766, 38662, 43123, 53532, 57993, 77324, 86246, 115986, 129369, 172492, 173979, 231972, 258738, 347958, 388107, 517476, 560599, 695916, 776214, 1121198, 1552428, 1681797, 2242396, 3363594, 5045391, 6727188, 10090782, 20181564]

約数ペア:

[(1, 20181564), (2, 10090782), (3, 6727188), (4, 5045391), (6, 3363594), (9, 2242396), (12, 1681797), (13, 1552428), (18, 1121198), (26, 776214), (29, 695916), (36, 560599), (39, 517476), (52, 388107), (58, 347958), (78, 258738), (87, 231972), (116, 173979), (117, 172492), (156, 129369), (174, 115986), (234, 86246), (261, 77324), (348, 57993), (377, 53532), (468, 43123), (522, 38662), (754, 26766), (1044, 19331), (1131, 17844), (1487, 13572), (1508, 13383), (2262, 8922), (2974, 6786), (3393, 5948), (4461, 4524)]