399683900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51907}}^1$

素因数の和:51939

約数の個数: 72

約数和(自身を含む): 1081347456

約数和(自身を除く): 681663556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 3850, 7700, 51907, 103814, 207628, 259535, 363349, 519070, 570977, 726698, 1038140, 1141954, 1297675, 1453396, 1816745, 2283908, 2595350, 2854885, 3633490, 3996839, 5190700, 5709770, 7266980, 7993678, 9083725, 11419540, 14274425, 15987356, 18167450, 19984195, 28548850, 36334900, 39968390, 57097700, 79936780, 99920975, 199841950, 399683900]

約数ペア:

[(1, 399683900), (2, 199841950), (4, 99920975), (5, 79936780), (7, 57097700), (10, 39968390), (11, 36334900), (14, 28548850), (20, 19984195), (22, 18167450), (25, 15987356), (28, 14274425), (35, 11419540), (44, 9083725), (50, 7993678), (55, 7266980), (70, 5709770), (77, 5190700), (100, 3996839), (110, 3633490), (140, 2854885), (154, 2595350), (175, 2283908), (220, 1816745), (275, 1453396), (308, 1297675), (350, 1141954), (385, 1038140), (550, 726698), (700, 570977), (770, 519070), (1100, 363349), (1540, 259535), (1925, 207628), (3850, 103814), (7700, 51907)]