4160000

素因数分解:

$2^9\times 5^4\times {\mathrm{13}}^1$

素因数の和:51

約数の個数: 100

約数和(自身を含む): 11185482

約数和(自身を除く): 7025482

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 256, 260, 320, 325, 400, 416, 500, 512, 520, 625, 640, 650, 800, 832, 1000, 1040, 1250, 1280, 1300, 1600, 1625, 1664, 2000, 2080, 2500, 2560, 2600, 3200, 3250, 3328, 4000, 4160, 5000, 5200, 6400, 6500, 6656, 8000, 8125, 8320, 10000, 10400, 12800, 13000, 16000, 16250, 16640, 20000, 20800, 26000, 32000, 32500, 33280, 40000, 41600, 52000, 64000, 65000, 80000, 83200, 104000, 130000, 160000, 166400, 208000, 260000, 320000, 416000, 520000, 832000, 1040000, 2080000, 4160000]

約数ペア:

[(1, 4160000), (2, 2080000), (4, 1040000), (5, 832000), (8, 520000), (10, 416000), (13, 320000), (16, 260000), (20, 208000), (25, 166400), (26, 160000), (32, 130000), (40, 104000), (50, 83200), (52, 80000), (64, 65000), (65, 64000), (80, 52000), (100, 41600), (104, 40000), (125, 33280), (128, 32500), (130, 32000), (160, 26000), (200, 20800), (208, 20000), (250, 16640), (256, 16250), (260, 16000), (320, 13000), (325, 12800), (400, 10400), (416, 10000), (500, 8320), (512, 8125), (520, 8000), (625, 6656), (640, 6500), (650, 6400), (800, 5200), (832, 5000), (1000, 4160), (1040, 4000), (1250, 3328), (1280, 3250), (1300, 3200), (1600, 2600), (1625, 2560), (1664, 2500), (2000, 2080)]