20459628

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 63924224

約数和(自身を除く): 43464596

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 81, 84, 93, 97, 108, 124, 126, 162, 186, 189, 194, 217, 243, 252, 279, 291, 324, 372, 378, 388, 434, 486, 558, 567, 582, 651, 679, 756, 837, 868, 873, 972, 1116, 1134, 1164, 1302, 1358, 1674, 1701, 1746, 1953, 2037, 2268, 2511, 2604, 2619, 2716, 3007, 3348, 3402, 3492, 3906, 4074, 5022, 5238, 5859, 6014, 6111, 6804, 7533, 7812, 7857, 8148, 9021, 10044, 10476, 11718, 12028, 12222, 15066, 15714, 17577, 18042, 18333, 21049, 23436, 23571, 24444, 27063, 30132, 31428, 35154, 36084, 36666, 42098, 47142, 52731, 54126, 54999, 63147, 70308, 73332, 81189, 84196, 94284, 105462, 108252, 109998, 126294, 162378, 164997, 189441, 210924, 219996, 243567, 252588, 324756, 329994, 378882, 487134, 568323, 659988, 730701, 757764, 974268, 1136646, 1461402, 1704969, 2273292, 2922804, 3409938, 5114907, 6819876, 10229814, 20459628]

約数ペア:

[(1, 20459628), (2, 10229814), (3, 6819876), (4, 5114907), (6, 3409938), (7, 2922804), (9, 2273292), (12, 1704969), (14, 1461402), (18, 1136646), (21, 974268), (27, 757764), (28, 730701), (31, 659988), (36, 568323), (42, 487134), (54, 378882), (62, 329994), (63, 324756), (81, 252588), (84, 243567), (93, 219996), (97, 210924), (108, 189441), (124, 164997), (126, 162378), (162, 126294), (186, 109998), (189, 108252), (194, 105462), (217, 94284), (243, 84196), (252, 81189), (279, 73332), (291, 70308), (324, 63147), (372, 54999), (378, 54126), (388, 52731), (434, 47142), (486, 42098), (558, 36666), (567, 36084), (582, 35154), (651, 31428), (679, 30132), (756, 27063), (837, 24444), (868, 23571), (873, 23436), (972, 21049), (1116, 18333), (1134, 18042), (1164, 17577), (1302, 15714), (1358, 15066), (1674, 12222), (1701, 12028), (1746, 11718), (1953, 10476), (2037, 10044), (2268, 9021), (2511, 8148), (2604, 7857), (2619, 7812), (2716, 7533), (3007, 6804), (3348, 6111), (3402, 6014), (3492, 5859), (3906, 5238), (4074, 5022)]