211679925

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{73}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 379445952

約数和(自身を除く): 167766027

約数列:

[1, 3, 5, 15, 23, 25, 41, 69, 73, 75, 115, 123, 205, 219, 345, 365, 575, 615, 943, 1025, 1095, 1679, 1681, 1725, 1825, 2829, 2993, 3075, 4715, 5037, 5043, 5475, 8395, 8405, 8979, 14145, 14965, 23575, 25185, 25215, 38663, 41975, 42025, 44895, 68839, 70725, 74825, 115989, 122713, 125925, 126075, 193315, 206517, 224475, 344195, 368139, 579945, 613565, 966575, 1032585, 1720975, 1840695, 2822399, 2899725, 3067825, 5162925, 8467197, 9203475, 14111995, 42335985, 70559975, 211679925]

約数ペア:

[(1, 211679925), (3, 70559975), (5, 42335985), (15, 14111995), (23, 9203475), (25, 8467197), (41, 5162925), (69, 3067825), (73, 2899725), (75, 2822399), (115, 1840695), (123, 1720975), (205, 1032585), (219, 966575), (345, 613565), (365, 579945), (575, 368139), (615, 344195), (943, 224475), (1025, 206517), (1095, 193315), (1679, 126075), (1681, 125925), (1725, 122713), (1825, 115989), (2829, 74825), (2993, 70725), (3075, 68839), (4715, 44895), (5037, 42025), (5043, 41975), (5475, 38663), (8395, 25215), (8405, 25185), (8979, 23575), (14145, 14965)]