28785675

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 51103872

約数和(自身を除く): 22318197

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 107, 211, 255, 321, 425, 535, 633, 1055, 1275, 1605, 1819, 2675, 3165, 3587, 5275, 5457, 8025, 9095, 10761, 15825, 17935, 22577, 27285, 45475, 53805, 67731, 89675, 112885, 136425, 269025, 338655, 383809, 564425, 1151427, 1693275, 1919045, 5757135, 9595225, 28785675]

約数ペア:

[(1, 28785675), (3, 9595225), (5, 5757135), (15, 1919045), (17, 1693275), (25, 1151427), (51, 564425), (75, 383809), (85, 338655), (107, 269025), (211, 136425), (255, 112885), (321, 89675), (425, 67731), (535, 53805), (633, 45475), (1055, 27285), (1275, 22577), (1605, 17935), (1819, 15825), (2675, 10761), (3165, 9095), (3587, 8025), (5275, 5457)]