217967025

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 368172864

約数和(自身を除く): 150205839

約数列:

[1, 3, 5, 15, 25, 75, 107, 157, 173, 321, 471, 519, 535, 785, 865, 1605, 2355, 2595, 2675, 3925, 4325, 8025, 11775, 12975, 16799, 18511, 27161, 50397, 55533, 81483, 83995, 92555, 135805, 251985, 277665, 407415, 419975, 462775, 679025, 1259925, 1388325, 2037075, 2906227, 8718681, 14531135, 43593405, 72655675, 217967025]

約数ペア:

[(1, 217967025), (3, 72655675), (5, 43593405), (15, 14531135), (25, 8718681), (75, 2906227), (107, 2037075), (157, 1388325), (173, 1259925), (321, 679025), (471, 462775), (519, 419975), (535, 407415), (785, 277665), (865, 251985), (1605, 135805), (2355, 92555), (2595, 83995), (2675, 81483), (3925, 55533), (4325, 50397), (8025, 27161), (11775, 18511), (12975, 16799)]