8664440

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 20489760

約数和(自身を除く): 11825320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 67, 106, 122, 134, 212, 244, 265, 268, 305, 335, 424, 488, 530, 536, 610, 670, 1060, 1220, 1340, 2120, 2440, 2680, 3233, 3551, 4087, 6466, 7102, 8174, 12932, 14204, 16165, 16348, 17755, 20435, 25864, 28408, 32330, 32696, 35510, 40870, 64660, 71020, 81740, 129320, 142040, 163480, 216611, 433222, 866444, 1083055, 1732888, 2166110, 4332220, 8664440]

約数ペア:

[(1, 8664440), (2, 4332220), (4, 2166110), (5, 1732888), (8, 1083055), (10, 866444), (20, 433222), (40, 216611), (53, 163480), (61, 142040), (67, 129320), (106, 81740), (122, 71020), (134, 64660), (212, 40870), (244, 35510), (265, 32696), (268, 32330), (305, 28408), (335, 25864), (424, 20435), (488, 17755), (530, 16348), (536, 16165), (610, 14204), (670, 12932), (1060, 8174), (1220, 7102), (1340, 6466), (2120, 4087), (2440, 3551), (2680, 3233)]