205465700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1237}}^1$

素因数の和:1413

約数の個数: 72

約数和(自身を含む): 490010304

約数和(自身を除く): 284544604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 151, 220, 275, 302, 550, 604, 755, 1100, 1237, 1510, 1661, 2474, 3020, 3322, 3775, 4948, 6185, 6644, 7550, 8305, 12370, 13607, 15100, 16610, 24740, 27214, 30925, 33220, 41525, 54428, 61850, 68035, 83050, 123700, 136070, 166100, 186787, 272140, 340175, 373574, 680350, 747148, 933935, 1360700, 1867870, 2054657, 3735740, 4109314, 4669675, 8218628, 9339350, 10273285, 18678700, 20546570, 41093140, 51366425, 102732850, 205465700]

約数ペア:

[(1, 205465700), (2, 102732850), (4, 51366425), (5, 41093140), (10, 20546570), (11, 18678700), (20, 10273285), (22, 9339350), (25, 8218628), (44, 4669675), (50, 4109314), (55, 3735740), (100, 2054657), (110, 1867870), (151, 1360700), (220, 933935), (275, 747148), (302, 680350), (550, 373574), (604, 340175), (755, 272140), (1100, 186787), (1237, 166100), (1510, 136070), (1661, 123700), (2474, 83050), (3020, 68035), (3322, 61850), (3775, 54428), (4948, 41525), (6185, 33220), (6644, 30925), (7550, 27214), (8305, 24740), (12370, 16610), (13607, 15100)]