1991108

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 4354560

約数和(自身を除く): 2363452

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 68, 89, 94, 119, 178, 188, 238, 329, 356, 476, 623, 658, 799, 1246, 1316, 1513, 1598, 2492, 3026, 3196, 4183, 5593, 6052, 8366, 10591, 11186, 16732, 21182, 22372, 29281, 42364, 58562, 71111, 117124, 142222, 284444, 497777, 995554, 1991108]

約数ペア:

[(1, 1991108), (2, 995554), (4, 497777), (7, 284444), (14, 142222), (17, 117124), (28, 71111), (34, 58562), (47, 42364), (68, 29281), (89, 22372), (94, 21182), (119, 16732), (178, 11186), (188, 10591), (238, 8366), (329, 6052), (356, 5593), (476, 4183), (623, 3196), (658, 3026), (799, 2492), (1246, 1598), (1316, 1513)]