26666536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 56548800

約数和(自身を除く): 29882264

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 67, 86, 89, 104, 134, 172, 178, 268, 344, 356, 536, 559, 712, 871, 1118, 1157, 1742, 2236, 2314, 2881, 3484, 3827, 4472, 4628, 5762, 5963, 6968, 7654, 9256, 11524, 11926, 15308, 23048, 23852, 30616, 37453, 47704, 49751, 74906, 77519, 99502, 149812, 155038, 199004, 256409, 299624, 310076, 398008, 512818, 620152, 1025636, 2051272, 3333317, 6666634, 13333268, 26666536]

約数ペア:

[(1, 26666536), (2, 13333268), (4, 6666634), (8, 3333317), (13, 2051272), (26, 1025636), (43, 620152), (52, 512818), (67, 398008), (86, 310076), (89, 299624), (104, 256409), (134, 199004), (172, 155038), (178, 149812), (268, 99502), (344, 77519), (356, 74906), (536, 49751), (559, 47704), (712, 37453), (871, 30616), (1118, 23852), (1157, 23048), (1742, 15308), (2236, 11926), (2314, 11524), (2881, 9256), (3484, 7654), (3827, 6968), (4472, 5963), (4628, 5762)]