340000000

素因数分解:

$2^8\times 5^7\times {\mathrm{17}}^1$

素因数の和:68

約数の個数: 144

約数和(自身を含む): 898239888

約数和(自身を除く): 558239888

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 125, 128, 136, 160, 170, 200, 250, 256, 272, 320, 340, 400, 425, 500, 544, 625, 640, 680, 800, 850, 1000, 1088, 1250, 1280, 1360, 1600, 1700, 2000, 2125, 2176, 2500, 2720, 3125, 3200, 3400, 4000, 4250, 4352, 5000, 5440, 6250, 6400, 6800, 8000, 8500, 10000, 10625, 10880, 12500, 13600, 15625, 16000, 17000, 20000, 21250, 21760, 25000, 27200, 31250, 32000, 34000, 40000, 42500, 50000, 53125, 54400, 62500, 68000, 78125, 80000, 85000, 100000, 106250, 108800, 125000, 136000, 156250, 160000, 170000, 200000, 212500, 250000, 265625, 272000, 312500, 340000, 400000, 425000, 500000, 531250, 544000, 625000, 680000, 800000, 850000, 1000000, 1062500, 1250000, 1328125, 1360000, 1700000, 2000000, 2125000, 2500000, 2656250, 2720000, 3400000, 4000000, 4250000, 5000000, 5312500, 6800000, 8500000, 10000000, 10625000, 13600000, 17000000, 20000000, 21250000, 34000000, 42500000, 68000000, 85000000, 170000000, 340000000]

約数ペア:

[(1, 340000000), (2, 170000000), (4, 85000000), (5, 68000000), (8, 42500000), (10, 34000000), (16, 21250000), (17, 20000000), (20, 17000000), (25, 13600000), (32, 10625000), (34, 10000000), (40, 8500000), (50, 6800000), (64, 5312500), (68, 5000000), (80, 4250000), (85, 4000000), (100, 3400000), (125, 2720000), (128, 2656250), (136, 2500000), (160, 2125000), (170, 2000000), (200, 1700000), (250, 1360000), (256, 1328125), (272, 1250000), (320, 1062500), (340, 1000000), (400, 850000), (425, 800000), (500, 680000), (544, 625000), (625, 544000), (640, 531250), (680, 500000), (800, 425000), (850, 400000), (1000, 340000), (1088, 312500), (1250, 272000), (1280, 265625), (1360, 250000), (1600, 212500), (1700, 200000), (2000, 170000), (2125, 160000), (2176, 156250), (2500, 136000), (2720, 125000), (3125, 108800), (3200, 106250), (3400, 100000), (4000, 85000), (4250, 80000), (4352, 78125), (5000, 68000), (5440, 62500), (6250, 54400), (6400, 53125), (6800, 50000), (8000, 42500), (8500, 40000), (10000, 34000), (10625, 32000), (10880, 31250), (12500, 27200), (13600, 25000), (15625, 21760), (16000, 21250), (17000, 20000)]