4891995

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 40

約数和(自身を含む): 8990784

約数和(自身を除く): 4098789

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 257, 405, 423, 705, 771, 1269, 1285, 2115, 2313, 3807, 3855, 6345, 6939, 11565, 12079, 19035, 20817, 34695, 36237, 60395, 104085, 108711, 181185, 326133, 543555, 978399, 1630665, 4891995]

約数ペア:

[(1, 4891995), (3, 1630665), (5, 978399), (9, 543555), (15, 326133), (27, 181185), (45, 108711), (47, 104085), (81, 60395), (135, 36237), (141, 34695), (235, 20817), (257, 19035), (405, 12079), (423, 11565), (705, 6939), (771, 6345), (1269, 3855), (1285, 3807), (2115, 2313)]