256916880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{983}}^1$

素因数の和:1027

約数の個数: 240

約数和(自身を含む): 973687680

約数和(自身を除く): 716770800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 121, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 242, 264, 270, 297, 330, 360, 363, 396, 432, 440, 484, 495, 528, 540, 594, 605, 660, 720, 726, 792, 880, 968, 983, 990, 1080, 1089, 1188, 1210, 1320, 1452, 1485, 1584, 1815, 1936, 1966, 1980, 2160, 2178, 2376, 2420, 2640, 2904, 2949, 2970, 3267, 3630, 3932, 3960, 4356, 4752, 4840, 4915, 5445, 5808, 5898, 5940, 6534, 7260, 7864, 7920, 8712, 8847, 9680, 9830, 10813, 10890, 11796, 11880, 13068, 14520, 14745, 15728, 16335, 17424, 17694, 19660, 21626, 21780, 23592, 23760, 26136, 26541, 29040, 29490, 32439, 32670, 35388, 39320, 43252, 43560, 44235, 47184, 52272, 53082, 54065, 58980, 64878, 65340, 70776, 78640, 86504, 87120, 88470, 97317, 106164, 108130, 117960, 118943, 129756, 130680, 132705, 141552, 162195, 173008, 176940, 194634, 212328, 216260, 235920, 237886, 259512, 261360, 265410, 291951, 324390, 353880, 356829, 389268, 424656, 432520, 475772, 486585, 519024, 530820, 583902, 594715, 648780, 707760, 713658, 778536, 865040, 951544, 973170, 1061640, 1070487, 1167804, 1189430, 1297560, 1427316, 1459755, 1557072, 1784145, 1903088, 1946340, 2123280, 2140974, 2335608, 2378860, 2595120, 2854632, 2919510, 3211461, 3568290, 3892680, 4281948, 4671216, 4757720, 5352435, 5709264, 5839020, 6422922, 7136580, 7785360, 8563896, 9515440, 10704870, 11678040, 12845844, 14273160, 16057305, 17127792, 21409740, 23356080, 25691688, 28546320, 32114610, 42819480, 51383376, 64229220, 85638960, 128458440, 256916880]

約数ペア:

[(1, 256916880), (2, 128458440), (3, 85638960), (4, 64229220), (5, 51383376), (6, 42819480), (8, 32114610), (9, 28546320), (10, 25691688), (11, 23356080), (12, 21409740), (15, 17127792), (16, 16057305), (18, 14273160), (20, 12845844), (22, 11678040), (24, 10704870), (27, 9515440), (30, 8563896), (33, 7785360), (36, 7136580), (40, 6422922), (44, 5839020), (45, 5709264), (48, 5352435), (54, 4757720), (55, 4671216), (60, 4281948), (66, 3892680), (72, 3568290), (80, 3211461), (88, 2919510), (90, 2854632), (99, 2595120), (108, 2378860), (110, 2335608), (120, 2140974), (121, 2123280), (132, 1946340), (135, 1903088), (144, 1784145), (165, 1557072), (176, 1459755), (180, 1427316), (198, 1297560), (216, 1189430), (220, 1167804), (240, 1070487), (242, 1061640), (264, 973170), (270, 951544), (297, 865040), (330, 778536), (360, 713658), (363, 707760), (396, 648780), (432, 594715), (440, 583902), (484, 530820), (495, 519024), (528, 486585), (540, 475772), (594, 432520), (605, 424656), (660, 389268), (720, 356829), (726, 353880), (792, 324390), (880, 291951), (968, 265410), (983, 261360), (990, 259512), (1080, 237886), (1089, 235920), (1188, 216260), (1210, 212328), (1320, 194634), (1452, 176940), (1485, 173008), (1584, 162195), (1815, 141552), (1936, 132705), (1966, 130680), (1980, 129756), (2160, 118943), (2178, 117960), (2376, 108130), (2420, 106164), (2640, 97317), (2904, 88470), (2949, 87120), (2970, 86504), (3267, 78640), (3630, 70776), (3932, 65340), (3960, 64878), (4356, 58980), (4752, 54065), (4840, 53082), (4915, 52272), (5445, 47184), (5808, 44235), (5898, 43560), (5940, 43252), (6534, 39320), (7260, 35388), (7864, 32670), (7920, 32439), (8712, 29490), (8847, 29040), (9680, 26541), (9830, 26136), (10813, 23760), (10890, 23592), (11796, 21780), (11880, 21626), (13068, 19660), (14520, 17694), (14745, 17424), (15728, 16335)]