255128640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20443}}^1$

素因数の和:20476

約数の個数: 112

約数和(自身を含む): 872386368

約数和(自身を除く): 617257728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 12480, 20443, 40886, 61329, 81772, 102215, 122658, 163544, 204430, 245316, 265759, 306645, 327088, 408860, 490632, 531518, 613290, 654176, 797277, 817720, 981264, 1063036, 1226580, 1308352, 1328795, 1594554, 1635440, 1962528, 2126072, 2453160, 2657590, 3189108, 3270880, 3925056, 3986385, 4252144, 4906320, 5315180, 6378216, 6541760, 7972770, 8504288, 9812640, 10630360, 12756432, 15945540, 17008576, 19625280, 21260720, 25512864, 31891080, 42521440, 51025728, 63782160, 85042880, 127564320, 255128640]

約数ペア:

[(1, 255128640), (2, 127564320), (3, 85042880), (4, 63782160), (5, 51025728), (6, 42521440), (8, 31891080), (10, 25512864), (12, 21260720), (13, 19625280), (15, 17008576), (16, 15945540), (20, 12756432), (24, 10630360), (26, 9812640), (30, 8504288), (32, 7972770), (39, 6541760), (40, 6378216), (48, 5315180), (52, 4906320), (60, 4252144), (64, 3986385), (65, 3925056), (78, 3270880), (80, 3189108), (96, 2657590), (104, 2453160), (120, 2126072), (130, 1962528), (156, 1635440), (160, 1594554), (192, 1328795), (195, 1308352), (208, 1226580), (240, 1063036), (260, 981264), (312, 817720), (320, 797277), (390, 654176), (416, 613290), (480, 531518), (520, 490632), (624, 408860), (780, 327088), (832, 306645), (960, 265759), (1040, 245316), (1248, 204430), (1560, 163544), (2080, 122658), (2496, 102215), (3120, 81772), (4160, 61329), (6240, 40886), (12480, 20443)]