10400000

素因数分解:

$2^8\times 5^5\times {\mathrm{13}}^1$

素因数の和:54

約数の個数: 108

約数和(自身を含む): 27943524

約数和(自身を除く): 17543524

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, 520, 625, 640, 650, 800, 832, 1000, 1040, 1250, 1280, 1300, 1600, 1625, 1664, 2000, 2080, 2500, 2600, 3125, 3200, 3250, 3328, 4000, 4160, 5000, 5200, 6250, 6400, 6500, 8000, 8125, 8320, 10000, 10400, 12500, 13000, 16000, 16250, 16640, 20000, 20800, 25000, 26000, 32000, 32500, 40000, 40625, 41600, 50000, 52000, 65000, 80000, 81250, 83200, 100000, 104000, 130000, 160000, 162500, 200000, 208000, 260000, 325000, 400000, 416000, 520000, 650000, 800000, 1040000, 1300000, 2080000, 2600000, 5200000, 10400000]

約数ペア:

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