20784525112

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{39551}}^1$

素因数の和:39764

約数の個数: 64

約数和(自身を含む): 43589468160

約数和(自身を除く): 22804943048

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 163, 248, 326, 403, 652, 806, 1304, 1612, 2119, 3224, 4238, 5053, 8476, 10106, 16952, 20212, 39551, 40424, 65689, 79102, 131378, 158204, 262756, 316408, 514163, 525512, 1028326, 1226081, 2056652, 2452162, 4113304, 4904324, 6446813, 9808648, 12893626, 15939053, 25787252, 31878106, 51574504, 63756212, 83808569, 127512424, 167617138, 199851203, 335234276, 399702406, 670468552, 799404812, 1598809624, 2598065639, 5196131278, 10392262556, 20784525112]

約数ペア:

[(1, 20784525112), (2, 10392262556), (4, 5196131278), (8, 2598065639), (13, 1598809624), (26, 799404812), (31, 670468552), (52, 399702406), (62, 335234276), (104, 199851203), (124, 167617138), (163, 127512424), (248, 83808569), (326, 63756212), (403, 51574504), (652, 31878106), (806, 25787252), (1304, 15939053), (1612, 12893626), (2119, 9808648), (3224, 6446813), (4238, 4904324), (5053, 4113304), (8476, 2452162), (10106, 2056652), (16952, 1226081), (20212, 1028326), (39551, 525512), (40424, 514163), (65689, 316408), (79102, 262756), (131378, 158204)]