28100345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 41879040

約数和(自身を除く): 13778695

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 409, 455, 755, 1057, 1963, 2045, 2863, 5285, 5317, 9815, 13741, 14315, 26585, 37219, 61759, 68705, 186095, 308795, 432313, 802867, 2161565, 4014335, 5620069, 28100345]

約数ペア:

[(1, 28100345), (5, 5620069), (7, 4014335), (13, 2161565), (35, 802867), (65, 432313), (91, 308795), (151, 186095), (409, 68705), (455, 61759), (755, 37219), (1057, 26585), (1963, 14315), (2045, 13741), (2863, 9815), (5285, 5317)]