20156864

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3461}}^1$

素因数の和:3493

約数の個数: 56

約数和(自身を含む): 49243488

約数和(自身を除く): 29086624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3461, 5824, 6922, 13844, 24227, 27688, 44993, 48454, 55376, 89986, 96908, 110752, 179972, 193816, 221504, 314951, 359944, 387632, 629902, 719888, 775264, 1259804, 1439776, 1550528, 2519608, 2879552, 5039216, 10078432, 20156864]

約数ペア:

[(1, 20156864), (2, 10078432), (4, 5039216), (7, 2879552), (8, 2519608), (13, 1550528), (14, 1439776), (16, 1259804), (26, 775264), (28, 719888), (32, 629902), (52, 387632), (56, 359944), (64, 314951), (91, 221504), (104, 193816), (112, 179972), (182, 110752), (208, 96908), (224, 89986), (364, 55376), (416, 48454), (448, 44993), (728, 27688), (832, 24227), (1456, 13844), (2912, 6922), (3461, 5824)]