256202640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 240

約数和(自身を含む): 899728128

約数和(自身を除く): 643525488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 47, 48, 60, 67, 72, 80, 90, 94, 113, 120, 134, 141, 144, 180, 188, 201, 226, 235, 240, 268, 282, 335, 339, 360, 376, 402, 423, 452, 470, 536, 564, 565, 603, 670, 678, 705, 720, 752, 804, 846, 904, 940, 1005, 1017, 1072, 1128, 1130, 1206, 1340, 1356, 1410, 1608, 1692, 1695, 1808, 1880, 2010, 2034, 2115, 2256, 2260, 2412, 2680, 2712, 2820, 3015, 3149, 3216, 3384, 3390, 3760, 4020, 4068, 4230, 4520, 4824, 5085, 5311, 5360, 5424, 5640, 6030, 6298, 6768, 6780, 7571, 8040, 8136, 8460, 9040, 9447, 9648, 10170, 10622, 11280, 12060, 12596, 13560, 15142, 15745, 15933, 16080, 16272, 16920, 18894, 20340, 21244, 22713, 24120, 25192, 26555, 27120, 28341, 30284, 31490, 31866, 33840, 37788, 37855, 40680, 42488, 45426, 47235, 47799, 48240, 50384, 53110, 56682, 60568, 62980, 63732, 68139, 75576, 75710, 79665, 81360, 84976, 90852, 94470, 95598, 106220, 113364, 113565, 121136, 125960, 127464, 136278, 141705, 151152, 151420, 159330, 181704, 188940, 191196, 212440, 226728, 227130, 238995, 251920, 254928, 272556, 283410, 302840, 318660, 340695, 355837, 363408, 377880, 382392, 424880, 453456, 454260, 477990, 545112, 566820, 605680, 637320, 681390, 711674, 755760, 764784, 908520, 955980, 1067511, 1090224, 1133640, 1274640, 1362780, 1423348, 1779185, 1817040, 1911960, 2135022, 2267280, 2725560, 2846696, 3202533, 3558370, 3823920, 4270044, 5337555, 5451120, 5693392, 6405066, 7116740, 8540088, 10675110, 12810132, 14233480, 16012665, 17080176, 21350220, 25620264, 28466960, 32025330, 42700440, 51240528, 64050660, 85400880, 128101320, 256202640]

約数ペア:

[(1, 256202640), (2, 128101320), (3, 85400880), (4, 64050660), (5, 51240528), (6, 42700440), (8, 32025330), (9, 28466960), (10, 25620264), (12, 21350220), (15, 17080176), (16, 16012665), (18, 14233480), (20, 12810132), (24, 10675110), (30, 8540088), (36, 7116740), (40, 6405066), (45, 5693392), (47, 5451120), (48, 5337555), (60, 4270044), (67, 3823920), (72, 3558370), (80, 3202533), (90, 2846696), (94, 2725560), (113, 2267280), (120, 2135022), (134, 1911960), (141, 1817040), (144, 1779185), (180, 1423348), (188, 1362780), (201, 1274640), (226, 1133640), (235, 1090224), (240, 1067511), (268, 955980), (282, 908520), (335, 764784), (339, 755760), (360, 711674), (376, 681390), (402, 637320), (423, 605680), (452, 566820), (470, 545112), (536, 477990), (564, 454260), (565, 453456), (603, 424880), (670, 382392), (678, 377880), (705, 363408), (720, 355837), (752, 340695), (804, 318660), (846, 302840), (904, 283410), (940, 272556), (1005, 254928), (1017, 251920), (1072, 238995), (1128, 227130), (1130, 226728), (1206, 212440), (1340, 191196), (1356, 188940), (1410, 181704), (1608, 159330), (1692, 151420), (1695, 151152), (1808, 141705), (1880, 136278), (2010, 127464), (2034, 125960), (2115, 121136), (2256, 113565), (2260, 113364), (2412, 106220), (2680, 95598), (2712, 94470), (2820, 90852), (3015, 84976), (3149, 81360), (3216, 79665), (3384, 75710), (3390, 75576), (3760, 68139), (4020, 63732), (4068, 62980), (4230, 60568), (4520, 56682), (4824, 53110), (5085, 50384), (5311, 48240), (5360, 47799), (5424, 47235), (5640, 45426), (6030, 42488), (6298, 40680), (6768, 37855), (6780, 37788), (7571, 33840), (8040, 31866), (8136, 31490), (8460, 30284), (9040, 28341), (9447, 27120), (9648, 26555), (10170, 25192), (10622, 24120), (11280, 22713), (12060, 21244), (12596, 20340), (13560, 18894), (15142, 16920), (15745, 16272), (15933, 16080)]