256885920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{178393}}^1$

素因数の和:178414

約数の個数: 72

約数和(自身を含む): 876628116

約数和(自身を除く): 619742196

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 178393, 356786, 535179, 713572, 891965, 1070358, 1427144, 1605537, 1783930, 2140716, 2675895, 2854288, 3211074, 3567860, 4281432, 5351790, 5708576, 6422148, 7135720, 8027685, 8562864, 10703580, 12844296, 14271440, 16055370, 17125728, 21407160, 25688592, 28542880, 32110740, 42814320, 51377184, 64221480, 85628640, 128442960, 256885920]

約数ペア:

[(1, 256885920), (2, 128442960), (3, 85628640), (4, 64221480), (5, 51377184), (6, 42814320), (8, 32110740), (9, 28542880), (10, 25688592), (12, 21407160), (15, 17125728), (16, 16055370), (18, 14271440), (20, 12844296), (24, 10703580), (30, 8562864), (32, 8027685), (36, 7135720), (40, 6422148), (45, 5708576), (48, 5351790), (60, 4281432), (72, 3567860), (80, 3211074), (90, 2854288), (96, 2675895), (120, 2140716), (144, 1783930), (160, 1605537), (180, 1427144), (240, 1070358), (288, 891965), (360, 713572), (480, 535179), (720, 356786), (1440, 178393)]