21625600

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 108

約数和(自身を含む): 55760320

約数和(自身を除く): 34134720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 109, 124, 128, 155, 160, 200, 218, 248, 256, 310, 320, 400, 436, 496, 545, 620, 640, 775, 800, 872, 992, 1090, 1240, 1280, 1550, 1600, 1744, 1984, 2180, 2480, 2725, 3100, 3200, 3379, 3488, 3968, 4360, 4960, 5450, 6200, 6400, 6758, 6976, 7936, 8720, 9920, 10900, 12400, 13516, 13952, 16895, 17440, 19840, 21800, 24800, 27032, 27904, 33790, 34880, 39680, 43600, 49600, 54064, 67580, 69760, 84475, 87200, 99200, 108128, 135160, 139520, 168950, 174400, 198400, 216256, 270320, 337900, 348800, 432512, 540640, 675800, 697600, 865024, 1081280, 1351600, 2162560, 2703200, 4325120, 5406400, 10812800, 21625600]

約数ペア:

[(1, 21625600), (2, 10812800), (4, 5406400), (5, 4325120), (8, 2703200), (10, 2162560), (16, 1351600), (20, 1081280), (25, 865024), (31, 697600), (32, 675800), (40, 540640), (50, 432512), (62, 348800), (64, 337900), (80, 270320), (100, 216256), (109, 198400), (124, 174400), (128, 168950), (155, 139520), (160, 135160), (200, 108128), (218, 99200), (248, 87200), (256, 84475), (310, 69760), (320, 67580), (400, 54064), (436, 49600), (496, 43600), (545, 39680), (620, 34880), (640, 33790), (775, 27904), (800, 27032), (872, 24800), (992, 21800), (1090, 19840), (1240, 17440), (1280, 16895), (1550, 13952), (1600, 13516), (1744, 12400), (1984, 10900), (2180, 9920), (2480, 8720), (2725, 7936), (3100, 6976), (3200, 6758), (3379, 6400), (3488, 6200), (3968, 5450), (4360, 4960)]