128499620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{683}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 282683520

約数和(自身を除く): 154183900

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 409, 460, 683, 818, 1366, 1636, 2045, 2732, 3415, 4090, 6830, 8180, 9407, 13660, 15709, 18814, 31418, 37628, 47035, 62836, 78545, 94070, 157090, 188140, 279347, 314180, 558694, 1117388, 1396735, 2793470, 5586940, 6424981, 12849962, 25699924, 32124905, 64249810, 128499620]

約数ペア:

[(1, 128499620), (2, 64249810), (4, 32124905), (5, 25699924), (10, 12849962), (20, 6424981), (23, 5586940), (46, 2793470), (92, 1396735), (115, 1117388), (230, 558694), (409, 314180), (460, 279347), (683, 188140), (818, 157090), (1366, 94070), (1636, 78545), (2045, 62836), (2732, 47035), (3415, 37628), (4090, 31418), (6830, 18814), (8180, 15709), (9407, 13660)]