41600000

素因数分解:

$2^{10}\times 5^5\times {\mathrm{13}}^1$

素因数の和:58

約数の個数: 132

約数和(自身を含む): 111938148

約数和(自身を除く): 70338148

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, 1024, 1040, 1250, 1280, 1300, 1600, 1625, 1664, 2000, 2080, 2500, 2560, 2600, 3125, 3200, 3250, 3328, 4000, 4160, 5000, 5120, 5200, 6250, 6400, 6500, 6656, 8000, 8125, 8320, 10000, 10400, 12500, 12800, 13000, 13312, 16000, 16250, 16640, 20000, 20800, 25000, 25600, 26000, 32000, 32500, 33280, 40000, 40625, 41600, 50000, 52000, 64000, 65000, 66560, 80000, 81250, 83200, 100000, 104000, 128000, 130000, 160000, 162500, 166400, 200000, 208000, 260000, 320000, 325000, 332800, 400000, 416000, 520000, 640000, 650000, 800000, 832000, 1040000, 1300000, 1600000, 1664000, 2080000, 2600000, 3200000, 4160000, 5200000, 8320000, 10400000, 20800000, 41600000]

約数ペア:

[(1, 41600000), (2, 20800000), (4, 10400000), (5, 8320000), (8, 5200000), (10, 4160000), (13, 3200000), (16, 2600000), (20, 2080000), (25, 1664000), (26, 1600000), (32, 1300000), (40, 1040000), (50, 832000), (52, 800000), (64, 650000), (65, 640000), (80, 520000), (100, 416000), (104, 400000), (125, 332800), (128, 325000), (130, 320000), (160, 260000), (200, 208000), (208, 200000), (250, 166400), (256, 162500), (260, 160000), (320, 130000), (325, 128000), (400, 104000), (416, 100000), (500, 83200), (512, 81250), (520, 80000), (625, 66560), (640, 65000), (650, 64000), (800, 52000), (832, 50000), (1000, 41600), (1024, 40625), (1040, 40000), (1250, 33280), (1280, 32500), (1300, 32000), (1600, 26000), (1625, 25600), (1664, 25000), (2000, 20800), (2080, 20000), (2500, 16640), (2560, 16250), (2600, 16000), (3125, 13312), (3200, 13000), (3250, 12800), (3328, 12500), (4000, 10400), (4160, 10000), (5000, 8320), (5120, 8125), (5200, 8000), (6250, 6656), (6400, 6500)]