164895200

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 144

約数和(自身を含む): 426222720

約数和(自身を除く): 261327520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 61, 62, 80, 100, 109, 122, 124, 155, 160, 200, 218, 244, 248, 305, 310, 400, 436, 488, 496, 545, 610, 620, 775, 800, 872, 976, 992, 1090, 1220, 1240, 1525, 1550, 1744, 1891, 1952, 2180, 2440, 2480, 2725, 3050, 3100, 3379, 3488, 3782, 4360, 4880, 4960, 5450, 6100, 6200, 6649, 6758, 7564, 8720, 9455, 9760, 10900, 12200, 12400, 13298, 13516, 15128, 16895, 17440, 18910, 21800, 24400, 24800, 26596, 27032, 30256, 33245, 33790, 37820, 43600, 47275, 48800, 53192, 54064, 60512, 66490, 67580, 75640, 84475, 87200, 94550, 106384, 108128, 132980, 135160, 151280, 166225, 168950, 189100, 206119, 212768, 265960, 270320, 302560, 332450, 337900, 378200, 412238, 531920, 540640, 664900, 675800, 756400, 824476, 1030595, 1063840, 1329800, 1351600, 1512800, 1648952, 2061190, 2659600, 2703200, 3297904, 4122380, 5152975, 5319200, 6595808, 8244760, 10305950, 16489520, 20611900, 32979040, 41223800, 82447600, 164895200]

約数ペア:

[(1, 164895200), (2, 82447600), (4, 41223800), (5, 32979040), (8, 20611900), (10, 16489520), (16, 10305950), (20, 8244760), (25, 6595808), (31, 5319200), (32, 5152975), (40, 4122380), (50, 3297904), (61, 2703200), (62, 2659600), (80, 2061190), (100, 1648952), (109, 1512800), (122, 1351600), (124, 1329800), (155, 1063840), (160, 1030595), (200, 824476), (218, 756400), (244, 675800), (248, 664900), (305, 540640), (310, 531920), (400, 412238), (436, 378200), (488, 337900), (496, 332450), (545, 302560), (610, 270320), (620, 265960), (775, 212768), (800, 206119), (872, 189100), (976, 168950), (992, 166225), (1090, 151280), (1220, 135160), (1240, 132980), (1525, 108128), (1550, 106384), (1744, 94550), (1891, 87200), (1952, 84475), (2180, 75640), (2440, 67580), (2480, 66490), (2725, 60512), (3050, 54064), (3100, 53192), (3379, 48800), (3488, 47275), (3782, 43600), (4360, 37820), (4880, 33790), (4960, 33245), (5450, 30256), (6100, 27032), (6200, 26596), (6649, 24800), (6758, 24400), (7564, 21800), (8720, 18910), (9455, 17440), (9760, 16895), (10900, 15128), (12200, 13516), (12400, 13298)]