18846520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 54950400

約数和(自身を除く): 36103880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 29, 35, 40, 44, 55, 56, 58, 70, 77, 88, 110, 116, 140, 145, 154, 203, 211, 220, 232, 280, 290, 308, 319, 385, 406, 422, 440, 580, 616, 638, 770, 812, 844, 1015, 1055, 1160, 1276, 1477, 1540, 1595, 1624, 1688, 2030, 2110, 2233, 2321, 2552, 2954, 3080, 3190, 4060, 4220, 4466, 4642, 5908, 6119, 6380, 7385, 8120, 8440, 8932, 9284, 11165, 11605, 11816, 12238, 12760, 14770, 16247, 17864, 18568, 22330, 23210, 24476, 29540, 30595, 32494, 42833, 44660, 46420, 48952, 59080, 61190, 64988, 67309, 81235, 85666, 89320, 92840, 122380, 129976, 134618, 162470, 171332, 214165, 244760, 269236, 324940, 336545, 342664, 428330, 471163, 538472, 649880, 673090, 856660, 942326, 1346180, 1713320, 1884652, 2355815, 2692360, 3769304, 4711630, 9423260, 18846520]

約数ペア:

[(1, 18846520), (2, 9423260), (4, 4711630), (5, 3769304), (7, 2692360), (8, 2355815), (10, 1884652), (11, 1713320), (14, 1346180), (20, 942326), (22, 856660), (28, 673090), (29, 649880), (35, 538472), (40, 471163), (44, 428330), (55, 342664), (56, 336545), (58, 324940), (70, 269236), (77, 244760), (88, 214165), (110, 171332), (116, 162470), (140, 134618), (145, 129976), (154, 122380), (203, 92840), (211, 89320), (220, 85666), (232, 81235), (280, 67309), (290, 64988), (308, 61190), (319, 59080), (385, 48952), (406, 46420), (422, 44660), (440, 42833), (580, 32494), (616, 30595), (638, 29540), (770, 24476), (812, 23210), (844, 22330), (1015, 18568), (1055, 17864), (1160, 16247), (1276, 14770), (1477, 12760), (1540, 12238), (1595, 11816), (1624, 11605), (1688, 11165), (2030, 9284), (2110, 8932), (2233, 8440), (2321, 8120), (2552, 7385), (2954, 6380), (3080, 6119), (3190, 5908), (4060, 4642), (4220, 4466)]