393421904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{8243}}^1$

素因数の和:8427

約数の個数: 40

約数和(自身を含む): 807582240

約数和(自身を除く): 414160336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 157, 304, 314, 628, 1256, 2512, 2983, 5966, 8243, 11932, 16486, 23864, 32972, 47728, 65944, 131888, 156617, 313234, 626468, 1252936, 1294151, 2505872, 2588302, 5176604, 10353208, 20706416, 24588869, 49177738, 98355476, 196710952, 393421904]

約数ペア:

[(1, 393421904), (2, 196710952), (4, 98355476), (8, 49177738), (16, 24588869), (19, 20706416), (38, 10353208), (76, 5176604), (152, 2588302), (157, 2505872), (304, 1294151), (314, 1252936), (628, 626468), (1256, 313234), (2512, 156617), (2983, 131888), (5966, 65944), (8243, 47728), (11932, 32972), (16486, 23864)]