661379904

素因数分解:

$2^6\times 3^5\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:136

約数の個数: 252

約数和(自身を含む): 2100230496

約数和(自身を除く): 1438850592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 43, 46, 48, 54, 64, 69, 72, 81, 86, 92, 96, 108, 129, 138, 144, 162, 172, 184, 192, 207, 216, 243, 258, 276, 288, 324, 344, 368, 387, 414, 432, 486, 516, 552, 576, 621, 648, 688, 736, 774, 828, 864, 972, 989, 1032, 1104, 1161, 1242, 1296, 1376, 1472, 1548, 1656, 1728, 1849, 1863, 1944, 1978, 2064, 2208, 2322, 2484, 2592, 2752, 2967, 3096, 3312, 3483, 3698, 3726, 3888, 3956, 4128, 4416, 4644, 4968, 5184, 5547, 5589, 5934, 6192, 6624, 6966, 7396, 7452, 7776, 7912, 8256, 8901, 9288, 9936, 10449, 11094, 11178, 11868, 12384, 13248, 13932, 14792, 14904, 15552, 15824, 16641, 17802, 18576, 19872, 20898, 22188, 22356, 23736, 24768, 26703, 27864, 29584, 29808, 31648, 33282, 35604, 37152, 39744, 41796, 42527, 44376, 44712, 47472, 49923, 53406, 55728, 59168, 59616, 63296, 66564, 71208, 74304, 80109, 83592, 85054, 88752, 89424, 94944, 99846, 106812, 111456, 118336, 119232, 127581, 133128, 142416, 149769, 160218, 167184, 170108, 177504, 178848, 189888, 199692, 213624, 222912, 240327, 255162, 266256, 284832, 299538, 320436, 334368, 340216, 355008, 357696, 382743, 399384, 427248, 449307, 480654, 510324, 532512, 569664, 599076, 640872, 668736, 680432, 765486, 798768, 854496, 898614, 961308, 1020648, 1065024, 1148229, 1198152, 1281744, 1360864, 1530972, 1597536, 1708992, 1797228, 1922616, 2041296, 2296458, 2396304, 2563488, 2721728, 3061944, 3195072, 3444687, 3594456, 3845232, 4082592, 4592916, 4792608, 5126976, 6123888, 6889374, 7188912, 7690464, 8165184, 9185832, 9585216, 10334061, 12247776, 13778748, 14377824, 15380928, 18371664, 20668122, 24495552, 27557496, 28755648, 36743328, 41336244, 55114992, 73486656, 82672488, 110229984, 165344976, 220459968, 330689952, 661379904]

約数ペア:

[(1, 661379904), (2, 330689952), (3, 220459968), (4, 165344976), (6, 110229984), (8, 82672488), (9, 73486656), (12, 55114992), (16, 41336244), (18, 36743328), (23, 28755648), (24, 27557496), (27, 24495552), (32, 20668122), (36, 18371664), (43, 15380928), (46, 14377824), (48, 13778748), (54, 12247776), (64, 10334061), (69, 9585216), (72, 9185832), (81, 8165184), (86, 7690464), (92, 7188912), (96, 6889374), (108, 6123888), (129, 5126976), (138, 4792608), (144, 4592916), (162, 4082592), (172, 3845232), (184, 3594456), (192, 3444687), (207, 3195072), (216, 3061944), (243, 2721728), (258, 2563488), (276, 2396304), (288, 2296458), (324, 2041296), (344, 1922616), (368, 1797228), (387, 1708992), (414, 1597536), (432, 1530972), (486, 1360864), (516, 1281744), (552, 1198152), (576, 1148229), (621, 1065024), (648, 1020648), (688, 961308), (736, 898614), (774, 854496), (828, 798768), (864, 765486), (972, 680432), (989, 668736), (1032, 640872), (1104, 599076), (1161, 569664), (1242, 532512), (1296, 510324), (1376, 480654), (1472, 449307), (1548, 427248), (1656, 399384), (1728, 382743), (1849, 357696), (1863, 355008), (1944, 340216), (1978, 334368), (2064, 320436), (2208, 299538), (2322, 284832), (2484, 266256), (2592, 255162), (2752, 240327), (2967, 222912), (3096, 213624), (3312, 199692), (3483, 189888), (3698, 178848), (3726, 177504), (3888, 170108), (3956, 167184), (4128, 160218), (4416, 149769), (4644, 142416), (4968, 133128), (5184, 127581), (5547, 119232), (5589, 118336), (5934, 111456), (6192, 106812), (6624, 99846), (6966, 94944), (7396, 89424), (7452, 88752), (7776, 85054), (7912, 83592), (8256, 80109), (8901, 74304), (9288, 71208), (9936, 66564), (10449, 63296), (11094, 59616), (11178, 59168), (11868, 55728), (12384, 53406), (13248, 49923), (13932, 47472), (14792, 44712), (14904, 44376), (15552, 42527), (15824, 41796), (16641, 39744), (17802, 37152), (18576, 35604), (19872, 33282), (20898, 31648), (22188, 29808), (22356, 29584), (23736, 27864), (24768, 26703)]