256236480

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:704

約数の個数: 224

約数和(自身を含む): 924641280

約数和(自身を除く): 668404800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 64, 72, 80, 90, 94, 96, 108, 120, 135, 141, 144, 160, 180, 188, 192, 216, 235, 240, 270, 282, 288, 320, 360, 376, 423, 432, 470, 480, 540, 564, 576, 631, 705, 720, 752, 846, 864, 940, 960, 1080, 1128, 1262, 1269, 1410, 1440, 1504, 1692, 1728, 1880, 1893, 2115, 2160, 2256, 2524, 2538, 2820, 2880, 3008, 3155, 3384, 3760, 3786, 4230, 4320, 4512, 5048, 5076, 5640, 5679, 6310, 6345, 6768, 7520, 7572, 8460, 8640, 9024, 9465, 10096, 10152, 11280, 11358, 12620, 12690, 13536, 15040, 15144, 16920, 17037, 18930, 20192, 20304, 22560, 22716, 25240, 25380, 27072, 28395, 29657, 30288, 33840, 34074, 37860, 40384, 40608, 45120, 45432, 50480, 50760, 56790, 59314, 60576, 67680, 68148, 75720, 81216, 85185, 88971, 90864, 100960, 101520, 113580, 118628, 121152, 135360, 136296, 148285, 151440, 170370, 177942, 181728, 201920, 203040, 227160, 237256, 266913, 272592, 296570, 302880, 340740, 355884, 363456, 406080, 444855, 454320, 474512, 533826, 545184, 593140, 605760, 681480, 711768, 800739, 889710, 908640, 949024, 1067652, 1090368, 1186280, 1334565, 1362960, 1423536, 1601478, 1779420, 1817280, 1898048, 2135304, 2372560, 2669130, 2725920, 2847072, 3202956, 3558840, 4003695, 4270608, 4745120, 5338260, 5451840, 5694144, 6405912, 7117680, 8007390, 8541216, 9490240, 10676520, 12811824, 14235360, 16014780, 17082432, 21353040, 25623648, 28470720, 32029560, 42706080, 51247296, 64059120, 85412160, 128118240, 256236480]

約数ペア:

[(1, 256236480), (2, 128118240), (3, 85412160), (4, 64059120), (5, 51247296), (6, 42706080), (8, 32029560), (9, 28470720), (10, 25623648), (12, 21353040), (15, 17082432), (16, 16014780), (18, 14235360), (20, 12811824), (24, 10676520), (27, 9490240), (30, 8541216), (32, 8007390), (36, 7117680), (40, 6405912), (45, 5694144), (47, 5451840), (48, 5338260), (54, 4745120), (60, 4270608), (64, 4003695), (72, 3558840), (80, 3202956), (90, 2847072), (94, 2725920), (96, 2669130), (108, 2372560), (120, 2135304), (135, 1898048), (141, 1817280), (144, 1779420), (160, 1601478), (180, 1423536), (188, 1362960), (192, 1334565), (216, 1186280), (235, 1090368), (240, 1067652), (270, 949024), (282, 908640), (288, 889710), (320, 800739), (360, 711768), (376, 681480), (423, 605760), (432, 593140), (470, 545184), (480, 533826), (540, 474512), (564, 454320), (576, 444855), (631, 406080), (705, 363456), (720, 355884), (752, 340740), (846, 302880), (864, 296570), (940, 272592), (960, 266913), (1080, 237256), (1128, 227160), (1262, 203040), (1269, 201920), (1410, 181728), (1440, 177942), (1504, 170370), (1692, 151440), (1728, 148285), (1880, 136296), (1893, 135360), (2115, 121152), (2160, 118628), (2256, 113580), (2524, 101520), (2538, 100960), (2820, 90864), (2880, 88971), (3008, 85185), (3155, 81216), (3384, 75720), (3760, 68148), (3786, 67680), (4230, 60576), (4320, 59314), (4512, 56790), (5048, 50760), (5076, 50480), (5640, 45432), (5679, 45120), (6310, 40608), (6345, 40384), (6768, 37860), (7520, 34074), (7572, 33840), (8460, 30288), (8640, 29657), (9024, 28395), (9465, 27072), (10096, 25380), (10152, 25240), (11280, 22716), (11358, 22560), (12620, 20304), (12690, 20192), (13536, 18930), (15040, 17037), (15144, 16920)]