18828145

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9557135

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1231, 2185, 3059, 6155, 8617, 15295, 23389, 28313, 43085, 116945, 141565, 163723, 198191, 537947, 818615, 990955, 2689735, 3765629, 18828145]

約数ペア:

[(1, 18828145), (5, 3765629), (7, 2689735), (19, 990955), (23, 818615), (35, 537947), (95, 198191), (115, 163723), (133, 141565), (161, 116945), (437, 43085), (665, 28313), (805, 23389), (1231, 15295), (2185, 8617), (3059, 6155)]