31421600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:239

約数の個数: 144

約数和(自身を含む): 90994176

約数和(自身を除く): 59572576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 160, 175, 181, 200, 217, 224, 248, 280, 310, 350, 362, 400, 434, 496, 560, 620, 700, 724, 775, 800, 868, 905, 992, 1085, 1120, 1240, 1267, 1400, 1448, 1550, 1736, 1810, 2170, 2480, 2534, 2800, 2896, 3100, 3472, 3620, 4340, 4525, 4960, 5068, 5425, 5600, 5611, 5792, 6200, 6335, 6944, 7240, 8680, 9050, 10136, 10850, 11222, 12400, 12670, 14480, 17360, 18100, 20272, 21700, 22444, 24800, 25340, 28055, 28960, 31675, 34720, 36200, 39277, 40544, 43400, 44888, 50680, 56110, 63350, 72400, 78554, 86800, 89776, 101360, 112220, 126700, 140275, 144800, 157108, 173600, 179552, 196385, 202720, 224440, 253400, 280550, 314216, 392770, 448880, 506800, 561100, 628432, 785540, 897760, 981925, 1013600, 1122200, 1256864, 1571080, 1963850, 2244400, 3142160, 3927700, 4488800, 6284320, 7855400, 15710800, 31421600]

約数ペア:

[(1, 31421600), (2, 15710800), (4, 7855400), (5, 6284320), (7, 4488800), (8, 3927700), (10, 3142160), (14, 2244400), (16, 1963850), (20, 1571080), (25, 1256864), (28, 1122200), (31, 1013600), (32, 981925), (35, 897760), (40, 785540), (50, 628432), (56, 561100), (62, 506800), (70, 448880), (80, 392770), (100, 314216), (112, 280550), (124, 253400), (140, 224440), (155, 202720), (160, 196385), (175, 179552), (181, 173600), (200, 157108), (217, 144800), (224, 140275), (248, 126700), (280, 112220), (310, 101360), (350, 89776), (362, 86800), (400, 78554), (434, 72400), (496, 63350), (560, 56110), (620, 50680), (700, 44888), (724, 43400), (775, 40544), (800, 39277), (868, 36200), (905, 34720), (992, 31675), (1085, 28960), (1120, 28055), (1240, 25340), (1267, 24800), (1400, 22444), (1448, 21700), (1550, 20272), (1736, 18100), (1810, 17360), (2170, 14480), (2480, 12670), (2534, 12400), (2800, 11222), (2896, 10850), (3100, 10136), (3472, 9050), (3620, 8680), (4340, 7240), (4525, 6944), (4960, 6335), (5068, 6200), (5425, 5792), (5600, 5611)]