16919375

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 40

約数和(自身を含む): 24292224

約数和(自身を除く): 7372849

約数列:

[1, 5, 11, 23, 25, 55, 107, 115, 125, 253, 275, 535, 575, 625, 1177, 1265, 1375, 2461, 2675, 2875, 5885, 6325, 6875, 12305, 13375, 14375, 27071, 29425, 31625, 61525, 66875, 135355, 147125, 158125, 307625, 676775, 735625, 1538125, 3383875, 16919375]

約数ペア:

[(1, 16919375), (5, 3383875), (11, 1538125), (23, 735625), (25, 676775), (55, 307625), (107, 158125), (115, 147125), (125, 135355), (253, 66875), (275, 61525), (535, 31625), (575, 29425), (625, 27071), (1177, 14375), (1265, 13375), (1375, 12305), (2461, 6875), (2675, 6325), (2875, 5885)]