1684654840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{81463}}^1$

素因数の和:81532

約数の個数: 64

約数和(自身を含む): 4223093760

約数和(自身を除く): 2538438920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 4136, 5170, 10340, 20680, 81463, 162926, 325852, 407315, 651704, 814630, 896093, 1629260, 1792186, 3258520, 3584372, 3828761, 4480465, 7168744, 7657522, 8960930, 15315044, 17921860, 19143805, 30630088, 35843720, 38287610, 42116371, 76575220, 84232742, 153150440, 168465484, 210581855, 336930968, 421163710, 842327420, 1684654840]

約数ペア:

[(1, 1684654840), (2, 842327420), (4, 421163710), (5, 336930968), (8, 210581855), (10, 168465484), (11, 153150440), (20, 84232742), (22, 76575220), (40, 42116371), (44, 38287610), (47, 35843720), (55, 30630088), (88, 19143805), (94, 17921860), (110, 15315044), (188, 8960930), (220, 7657522), (235, 7168744), (376, 4480465), (440, 3828761), (470, 3584372), (517, 3258520), (940, 1792186), (1034, 1629260), (1880, 896093), (2068, 814630), (2585, 651704), (4136, 407315), (5170, 325852), (10340, 162926), (20680, 81463)]