289791964

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21881}}^1$

素因数の和:21946

約数の個数: 48

約数和(自身を含む): 647006976

約数和(自身を除く): 357215012

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1892, 3311, 6622, 13244, 21881, 43762, 87524, 153167, 240691, 306334, 481382, 612668, 940883, 962764, 1684837, 1881766, 3369674, 3763532, 6586181, 6739348, 10349713, 13172362, 20699426, 26344724, 41398852, 72447991, 144895982, 289791964]

約数ペア:

[(1, 289791964), (2, 144895982), (4, 72447991), (7, 41398852), (11, 26344724), (14, 20699426), (22, 13172362), (28, 10349713), (43, 6739348), (44, 6586181), (77, 3763532), (86, 3369674), (154, 1881766), (172, 1684837), (301, 962764), (308, 940883), (473, 612668), (602, 481382), (946, 306334), (1204, 240691), (1892, 153167), (3311, 87524), (6622, 43762), (13244, 21881)]