103280000

素因数分解:

$2^7\times 5^4\times {\mathrm{1291}}^1$

素因数の和:1325

約数の個数: 80

約数和(自身を含む): 257308260

約数和(自身を除く): 154028260

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, 1000, 1250, 1291, 1600, 2000, 2500, 2582, 3200, 4000, 5000, 5164, 6455, 8000, 10000, 10328, 12910, 16000, 20000, 20656, 25820, 32275, 40000, 41312, 51640, 64550, 80000, 82624, 103280, 129100, 161375, 165248, 206560, 258200, 322750, 413120, 516400, 645500, 806875, 826240, 1032800, 1291000, 1613750, 2065600, 2582000, 3227500, 4131200, 5164000, 6455000, 10328000, 12910000, 20656000, 25820000, 51640000, 103280000]

約数ペア:

[(1, 103280000), (2, 51640000), (4, 25820000), (5, 20656000), (8, 12910000), (10, 10328000), (16, 6455000), (20, 5164000), (25, 4131200), (32, 3227500), (40, 2582000), (50, 2065600), (64, 1613750), (80, 1291000), (100, 1032800), (125, 826240), (128, 806875), (160, 645500), (200, 516400), (250, 413120), (320, 322750), (400, 258200), (500, 206560), (625, 165248), (640, 161375), (800, 129100), (1000, 103280), (1250, 82624), (1291, 80000), (1600, 64550), (2000, 51640), (2500, 41312), (2582, 40000), (3200, 32275), (4000, 25820), (5000, 20656), (5164, 20000), (6455, 16000), (8000, 12910), (10000, 10328)]