1890018788

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{1579}}^1$

素因数の和:1825

約数の個数: 72

約数和(自身を含む): 3994341120

約数和(自身を除く): 2104322332

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 197, 217, 394, 434, 788, 868, 1379, 1519, 1579, 2758, 3038, 3158, 5516, 6076, 6107, 6316, 9653, 11053, 12214, 19306, 22106, 24428, 38612, 42749, 44212, 48949, 77371, 85498, 97898, 154742, 170996, 195796, 299243, 309484, 311063, 342643, 598486, 622126, 685286, 1196972, 1244252, 1370572, 2177441, 2398501, 4354882, 4797002, 8709764, 9594004, 9642953, 15242087, 19285906, 30484174, 38571812, 60968348, 67500671, 135001342, 270002684, 472504697, 945009394, 1890018788]

約数ペア:

[(1, 1890018788), (2, 945009394), (4, 472504697), (7, 270002684), (14, 135001342), (28, 67500671), (31, 60968348), (49, 38571812), (62, 30484174), (98, 19285906), (124, 15242087), (196, 9642953), (197, 9594004), (217, 8709764), (394, 4797002), (434, 4354882), (788, 2398501), (868, 2177441), (1379, 1370572), (1519, 1244252), (1579, 1196972), (2758, 685286), (3038, 622126), (3158, 598486), (5516, 342643), (6076, 311063), (6107, 309484), (6316, 299243), (9653, 195796), (11053, 170996), (12214, 154742), (19306, 97898), (22106, 85498), (24428, 77371), (38612, 48949), (42749, 44212)]