18558896

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1557

約数の個数: 40

約数和(自身を含む): 38799600

約数和(自身を除く): 20240704

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1489, 1558, 2978, 3116, 5956, 6232, 11912, 12464, 23824, 28291, 56582, 61049, 113164, 122098, 226328, 244196, 452656, 488392, 976784, 1159931, 2319862, 4639724, 9279448, 18558896]

約数ペア:

[(1, 18558896), (2, 9279448), (4, 4639724), (8, 2319862), (16, 1159931), (19, 976784), (38, 488392), (41, 452656), (76, 244196), (82, 226328), (152, 122098), (164, 113164), (304, 61049), (328, 56582), (656, 28291), (779, 23824), (1489, 12464), (1558, 11912), (2978, 6232), (3116, 5956)]