128921764

素因数分解:

$2^2\times {\mathrm{19}}^3\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 48

約数和(自身を含む): 246507520

約数和(自身を除く): 117585756

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 127, 148, 254, 361, 508, 703, 722, 1406, 1444, 2413, 2812, 4699, 4826, 6859, 9398, 9652, 13357, 13718, 18796, 26714, 27436, 45847, 53428, 89281, 91694, 178562, 183388, 253783, 357124, 507566, 871093, 1015132, 1696339, 1742186, 3392678, 3484372, 6785356, 32230441, 64460882, 128921764]

約数ペア:

[(1, 128921764), (2, 64460882), (4, 32230441), (19, 6785356), (37, 3484372), (38, 3392678), (74, 1742186), (76, 1696339), (127, 1015132), (148, 871093), (254, 507566), (361, 357124), (508, 253783), (703, 183388), (722, 178562), (1406, 91694), (1444, 89281), (2413, 53428), (2812, 45847), (4699, 27436), (4826, 26714), (6859, 18796), (9398, 13718), (9652, 13357)]