20139950

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 39747456

約数和(自身を除く): 19607506

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 83, 115, 166, 211, 230, 415, 422, 575, 830, 1055, 1150, 1909, 2075, 2110, 3818, 4150, 4853, 5275, 9545, 9706, 10550, 17513, 19090, 24265, 35026, 47725, 48530, 87565, 95450, 121325, 175130, 242650, 402799, 437825, 805598, 875650, 2013995, 4027990, 10069975, 20139950]

約数ペア:

[(1, 20139950), (2, 10069975), (5, 4027990), (10, 2013995), (23, 875650), (25, 805598), (46, 437825), (50, 402799), (83, 242650), (115, 175130), (166, 121325), (211, 95450), (230, 87565), (415, 48530), (422, 47725), (575, 35026), (830, 24265), (1055, 19090), (1150, 17513), (1909, 10550), (2075, 9706), (2110, 9545), (3818, 5275), (4150, 4853)]