257529120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{53}}^2\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 831140352

約数和(自身を除く): 573611232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 191, 212, 240, 265, 318, 382, 424, 480, 530, 573, 636, 764, 795, 848, 955, 1060, 1146, 1272, 1528, 1590, 1696, 1910, 2120, 2292, 2544, 2809, 2865, 3056, 3180, 3820, 4240, 4584, 5088, 5618, 5730, 6112, 6360, 7640, 8427, 8480, 9168, 10123, 11236, 11460, 12720, 14045, 15280, 16854, 18336, 20246, 22472, 22920, 25440, 28090, 30369, 30560, 33708, 40492, 42135, 44944, 45840, 50615, 56180, 60738, 67416, 80984, 84270, 89888, 91680, 101230, 112360, 121476, 134832, 151845, 161968, 168540, 202460, 224720, 242952, 269664, 303690, 323936, 337080, 404920, 449440, 485904, 536519, 607380, 674160, 809840, 971808, 1073038, 1214760, 1348320, 1609557, 1619680, 2146076, 2429520, 2682595, 3219114, 4292152, 4859040, 5365190, 6438228, 8047785, 8584304, 10730380, 12876456, 16095570, 17168608, 21460760, 25752912, 32191140, 42921520, 51505824, 64382280, 85843040, 128764560, 257529120]

約数ペア:

[(1, 257529120), (2, 128764560), (3, 85843040), (4, 64382280), (5, 51505824), (6, 42921520), (8, 32191140), (10, 25752912), (12, 21460760), (15, 17168608), (16, 16095570), (20, 12876456), (24, 10730380), (30, 8584304), (32, 8047785), (40, 6438228), (48, 5365190), (53, 4859040), (60, 4292152), (80, 3219114), (96, 2682595), (106, 2429520), (120, 2146076), (159, 1619680), (160, 1609557), (191, 1348320), (212, 1214760), (240, 1073038), (265, 971808), (318, 809840), (382, 674160), (424, 607380), (480, 536519), (530, 485904), (573, 449440), (636, 404920), (764, 337080), (795, 323936), (848, 303690), (955, 269664), (1060, 242952), (1146, 224720), (1272, 202460), (1528, 168540), (1590, 161968), (1696, 151845), (1910, 134832), (2120, 121476), (2292, 112360), (2544, 101230), (2809, 91680), (2865, 89888), (3056, 84270), (3180, 80984), (3820, 67416), (4240, 60738), (4584, 56180), (5088, 50615), (5618, 45840), (5730, 44944), (6112, 42135), (6360, 40492), (7640, 33708), (8427, 30560), (8480, 30369), (9168, 28090), (10123, 25440), (11236, 22920), (11460, 22472), (12720, 20246), (14045, 18336), (15280, 16854)]