28474745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 39608352

約数和(自身を除く): 11133607

約数列:

[1, 5, 13, 17, 65, 73, 85, 221, 353, 365, 949, 1105, 1241, 1765, 4589, 4745, 6001, 6205, 16133, 22945, 25769, 30005, 78013, 80665, 128845, 334997, 390065, 438073, 1674985, 2190365, 5694949, 28474745]

約数ペア:

[(1, 28474745), (5, 5694949), (13, 2190365), (17, 1674985), (65, 438073), (73, 390065), (85, 334997), (221, 128845), (353, 80665), (365, 78013), (949, 30005), (1105, 25769), (1241, 22945), (1765, 16133), (4589, 6205), (4745, 6001)]