400404700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1627}}^1$

素因数の和:1771

約数の個数: 72

約数和(自身を含む): 915691392

約数和(自身を除く): 515286692

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 107, 115, 214, 230, 428, 460, 535, 575, 1070, 1150, 1627, 2140, 2300, 2461, 2675, 3254, 4922, 5350, 6508, 8135, 9844, 10700, 12305, 16270, 24610, 32540, 37421, 40675, 49220, 61525, 74842, 81350, 123050, 149684, 162700, 174089, 187105, 246100, 348178, 374210, 696356, 748420, 870445, 935525, 1740890, 1871050, 3481780, 3742100, 4004047, 4352225, 8008094, 8704450, 16016188, 17408900, 20020235, 40040470, 80080940, 100101175, 200202350, 400404700]

約数ペア:

[(1, 400404700), (2, 200202350), (4, 100101175), (5, 80080940), (10, 40040470), (20, 20020235), (23, 17408900), (25, 16016188), (46, 8704450), (50, 8008094), (92, 4352225), (100, 4004047), (107, 3742100), (115, 3481780), (214, 1871050), (230, 1740890), (428, 935525), (460, 870445), (535, 748420), (575, 696356), (1070, 374210), (1150, 348178), (1627, 246100), (2140, 187105), (2300, 174089), (2461, 162700), (2675, 149684), (3254, 123050), (4922, 81350), (5350, 74842), (6508, 61525), (8135, 49220), (9844, 40675), (10700, 37421), (12305, 32540), (16270, 24610)]