21161600

素因数分解:

$2^7\times 5^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:430

約数の個数: 96

約数和(自身を含む): 55493100

約数和(自身を除く): 34331500

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 200, 272, 320, 340, 389, 400, 425, 544, 640, 680, 778, 800, 850, 1088, 1360, 1556, 1600, 1700, 1945, 2176, 2720, 3112, 3200, 3400, 3890, 5440, 6224, 6613, 6800, 7780, 9725, 10880, 12448, 13226, 13600, 15560, 19450, 24896, 26452, 27200, 31120, 33065, 38900, 49792, 52904, 54400, 62240, 66130, 77800, 105808, 124480, 132260, 155600, 165325, 211616, 248960, 264520, 311200, 330650, 423232, 529040, 622400, 661300, 846464, 1058080, 1244800, 1322600, 2116160, 2645200, 4232320, 5290400, 10580800, 21161600]

約数ペア:

[(1, 21161600), (2, 10580800), (4, 5290400), (5, 4232320), (8, 2645200), (10, 2116160), (16, 1322600), (17, 1244800), (20, 1058080), (25, 846464), (32, 661300), (34, 622400), (40, 529040), (50, 423232), (64, 330650), (68, 311200), (80, 264520), (85, 248960), (100, 211616), (128, 165325), (136, 155600), (160, 132260), (170, 124480), (200, 105808), (272, 77800), (320, 66130), (340, 62240), (389, 54400), (400, 52904), (425, 49792), (544, 38900), (640, 33065), (680, 31120), (778, 27200), (800, 26452), (850, 24896), (1088, 19450), (1360, 15560), (1556, 13600), (1600, 13226), (1700, 12448), (1945, 10880), (2176, 9725), (2720, 7780), (3112, 6800), (3200, 6613), (3400, 6224), (3890, 5440)]