28661775

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^2\times {\mathrm{173}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 48697032

約数和(自身を除く): 20035257

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 173, 235, 519, 705, 865, 1175, 2209, 2595, 3525, 4325, 6627, 8131, 11045, 12975, 24393, 33135, 40655, 55225, 121965, 165675, 203275, 382157, 609825, 1146471, 1910785, 5732355, 9553925, 28661775]

約数ペア:

[(1, 28661775), (3, 9553925), (5, 5732355), (15, 1910785), (25, 1146471), (47, 609825), (75, 382157), (141, 203275), (173, 165675), (235, 121965), (519, 55225), (705, 40655), (865, 33135), (1175, 24393), (2209, 12975), (2595, 11045), (3525, 8131), (4325, 6627)]