28328745

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 47142144

約数和(自身を除く): 18813399

約数列:

[1, 3, 5, 15, 41, 73, 123, 205, 219, 365, 615, 631, 1095, 1893, 2993, 3155, 8979, 9465, 14965, 25871, 44895, 46063, 77613, 129355, 138189, 230315, 388065, 690945, 1888583, 5665749, 9442915, 28328745]

約数ペア:

[(1, 28328745), (3, 9442915), (5, 5665749), (15, 1888583), (41, 690945), (73, 388065), (123, 230315), (205, 138189), (219, 129355), (365, 77613), (615, 46063), (631, 44895), (1095, 25871), (1893, 14965), (2993, 9465), (3155, 8979)]