16865240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 47001600

約数和(自身を除く): 30136360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 67, 70, 116, 124, 134, 140, 145, 155, 203, 217, 232, 248, 268, 280, 290, 310, 335, 406, 434, 469, 536, 580, 620, 670, 812, 868, 899, 938, 1015, 1085, 1160, 1240, 1340, 1624, 1736, 1798, 1876, 1943, 2030, 2077, 2170, 2345, 2680, 3596, 3752, 3886, 4060, 4154, 4340, 4495, 4690, 6293, 7192, 7772, 8120, 8308, 8680, 8990, 9380, 9715, 10385, 12586, 13601, 14539, 15544, 16616, 17980, 18760, 19430, 20770, 25172, 27202, 29078, 31465, 35960, 38860, 41540, 50344, 54404, 58156, 60233, 62930, 68005, 72695, 77720, 83080, 108808, 116312, 120466, 125860, 136010, 145390, 240932, 251720, 272020, 290780, 301165, 421631, 481864, 544040, 581560, 602330, 843262, 1204660, 1686524, 2108155, 2409320, 3373048, 4216310, 8432620, 16865240]

約数ペア:

[(1, 16865240), (2, 8432620), (4, 4216310), (5, 3373048), (7, 2409320), (8, 2108155), (10, 1686524), (14, 1204660), (20, 843262), (28, 602330), (29, 581560), (31, 544040), (35, 481864), (40, 421631), (56, 301165), (58, 290780), (62, 272020), (67, 251720), (70, 240932), (116, 145390), (124, 136010), (134, 125860), (140, 120466), (145, 116312), (155, 108808), (203, 83080), (217, 77720), (232, 72695), (248, 68005), (268, 62930), (280, 60233), (290, 58156), (310, 54404), (335, 50344), (406, 41540), (434, 38860), (469, 35960), (536, 31465), (580, 29078), (620, 27202), (670, 25172), (812, 20770), (868, 19430), (899, 18760), (938, 17980), (1015, 16616), (1085, 15544), (1160, 14539), (1240, 13601), (1340, 12586), (1624, 10385), (1736, 9715), (1798, 9380), (1876, 8990), (1943, 8680), (2030, 8308), (2077, 8120), (2170, 7772), (2345, 7192), (2680, 6293), (3596, 4690), (3752, 4495), (3886, 4340), (4060, 4154)]