5200000

素因数分解:

$2^7\times 5^5\times {\mathrm{13}}^1$

素因数の和:52

約数の個数: 96

約数和(自身を含む): 13944420

約数和(自身を除く): 8744420

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, 260, 320, 325, 400, 416, 500, 520, 625, 640, 650, 800, 832, 1000, 1040, 1250, 1300, 1600, 1625, 1664, 2000, 2080, 2500, 2600, 3125, 3200, 3250, 4000, 4160, 5000, 5200, 6250, 6500, 8000, 8125, 8320, 10000, 10400, 12500, 13000, 16000, 16250, 20000, 20800, 25000, 26000, 32500, 40000, 40625, 41600, 50000, 52000, 65000, 80000, 81250, 100000, 104000, 130000, 162500, 200000, 208000, 260000, 325000, 400000, 520000, 650000, 1040000, 1300000, 2600000, 5200000]

約数ペア:

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