16988375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:368

約数の個数: 32

約数和(自身を含む): 23362560

約数和(自身を除く): 6374185

約数列:

[1, 5, 19, 23, 25, 95, 115, 125, 311, 437, 475, 575, 1555, 2185, 2375, 2875, 5909, 7153, 7775, 10925, 29545, 35765, 38875, 54625, 135907, 147725, 178825, 679535, 738625, 894125, 3397675, 16988375]

約数ペア:

[(1, 16988375), (5, 3397675), (19, 894125), (23, 738625), (25, 679535), (95, 178825), (115, 147725), (125, 135907), (311, 54625), (437, 38875), (475, 35765), (575, 29545), (1555, 10925), (2185, 7775), (2375, 7153), (2875, 5909)]