128839360

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30971}}^1$

素因数の和:31001

約数の個数: 56

約数和(自身を含む): 330409296

約数和(自身を除く): 201569936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 30971, 61942, 123884, 154855, 247768, 309710, 402623, 495536, 619420, 805246, 991072, 1238840, 1610492, 1982144, 2013115, 2477680, 3220984, 4026230, 4955360, 6441968, 8052460, 9910720, 12883936, 16104920, 25767872, 32209840, 64419680, 128839360]

約数ペア:

[(1, 128839360), (2, 64419680), (4, 32209840), (5, 25767872), (8, 16104920), (10, 12883936), (13, 9910720), (16, 8052460), (20, 6441968), (26, 4955360), (32, 4026230), (40, 3220984), (52, 2477680), (64, 2013115), (65, 1982144), (80, 1610492), (104, 1238840), (130, 991072), (160, 805246), (208, 619420), (260, 495536), (320, 402623), (416, 309710), (520, 247768), (832, 154855), (1040, 123884), (2080, 61942), (4160, 30971)]