65840000

素因数分解:

$2^7\times 5^4\times {\mathrm{823}}^1$

素因数の和:857

約数の個数: 80

約数和(自身を含む): 164103720

約数和(自身を除く): 98263720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 823, 1000, 1250, 1600, 1646, 2000, 2500, 3200, 3292, 4000, 4115, 5000, 6584, 8000, 8230, 10000, 13168, 16000, 16460, 20000, 20575, 26336, 32920, 40000, 41150, 52672, 65840, 80000, 82300, 102875, 105344, 131680, 164600, 205750, 263360, 329200, 411500, 514375, 526720, 658400, 823000, 1028750, 1316800, 1646000, 2057500, 2633600, 3292000, 4115000, 6584000, 8230000, 13168000, 16460000, 32920000, 65840000]

約数ペア:

[(1, 65840000), (2, 32920000), (4, 16460000), (5, 13168000), (8, 8230000), (10, 6584000), (16, 4115000), (20, 3292000), (25, 2633600), (32, 2057500), (40, 1646000), (50, 1316800), (64, 1028750), (80, 823000), (100, 658400), (125, 526720), (128, 514375), (160, 411500), (200, 329200), (250, 263360), (320, 205750), (400, 164600), (500, 131680), (625, 105344), (640, 102875), (800, 82300), (823, 80000), (1000, 65840), (1250, 52672), (1600, 41150), (1646, 40000), (2000, 32920), (2500, 26336), (3200, 20575), (3292, 20000), (4000, 16460), (4115, 16000), (5000, 13168), (6584, 10000), (8000, 8230)]