28493145

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 51514320

約数和(自身を除く): 23021175

約数列:

[1, 3, 5, 9, 15, 37, 45, 109, 111, 157, 185, 327, 333, 471, 545, 555, 785, 981, 1413, 1635, 1665, 2355, 4033, 4905, 5809, 7065, 12099, 17113, 17427, 20165, 29045, 36297, 51339, 52281, 60495, 85565, 87135, 154017, 181485, 256695, 261405, 633181, 770085, 1899543, 3165905, 5698629, 9497715, 28493145]

約数ペア:

[(1, 28493145), (3, 9497715), (5, 5698629), (9, 3165905), (15, 1899543), (37, 770085), (45, 633181), (109, 261405), (111, 256695), (157, 181485), (185, 154017), (327, 87135), (333, 85565), (471, 60495), (545, 52281), (555, 51339), (785, 36297), (981, 29045), (1413, 20165), (1635, 17427), (1665, 17113), (2355, 12099), (4033, 7065), (4905, 5809)]