257349960

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{1621}}^1$

素因数の和:1658

約数の個数: 240

約数和(自身を含む): 1006824060

約数和(自身を除く): 749474100

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 324, 360, 378, 392, 405, 420, 441, 490, 504, 540, 567, 588, 630, 648, 735, 756, 810, 840, 882, 945, 980, 1080, 1134, 1176, 1260, 1323, 1470, 1512, 1620, 1621, 1764, 1890, 1960, 2205, 2268, 2520, 2646, 2835, 2940, 3240, 3242, 3528, 3780, 3969, 4410, 4536, 4863, 5292, 5670, 5880, 6484, 6615, 7560, 7938, 8105, 8820, 9726, 10584, 11340, 11347, 12968, 13230, 14589, 15876, 16210, 17640, 19452, 19845, 22680, 22694, 24315, 26460, 29178, 31752, 32420, 34041, 38904, 39690, 43767, 45388, 48630, 52920, 56735, 58356, 64840, 68082, 72945, 79380, 79429, 87534, 90776, 97260, 102123, 113470, 116712, 131301, 136164, 145890, 158760, 158858, 170205, 175068, 194520, 204246, 218835, 226940, 238287, 262602, 272328, 291780, 306369, 317716, 340410, 350136, 397145, 408492, 437670, 453880, 476574, 510615, 525204, 583560, 612738, 635432, 656505, 680820, 714861, 794290, 816984, 875340, 919107, 953148, 1021230, 1050408, 1191435, 1225476, 1313010, 1361640, 1429722, 1531845, 1588580, 1750680, 1838214, 1906296, 2042460, 2144583, 2382870, 2450952, 2626020, 2859444, 3063690, 3177160, 3574305, 3676428, 4084920, 4289166, 4595535, 4765740, 5252040, 5718888, 6127380, 6433749, 7148610, 7352856, 8578332, 9191070, 9531480, 10722915, 12254760, 12867498, 14297220, 17156664, 18382140, 21445830, 25734996, 28594440, 32168745, 36764280, 42891660, 51469992, 64337490, 85783320, 128674980, 257349960]

約数ペア:

[(1, 257349960), (2, 128674980), (3, 85783320), (4, 64337490), (5, 51469992), (6, 42891660), (7, 36764280), (8, 32168745), (9, 28594440), (10, 25734996), (12, 21445830), (14, 18382140), (15, 17156664), (18, 14297220), (20, 12867498), (21, 12254760), (24, 10722915), (27, 9531480), (28, 9191070), (30, 8578332), (35, 7352856), (36, 7148610), (40, 6433749), (42, 6127380), (45, 5718888), (49, 5252040), (54, 4765740), (56, 4595535), (60, 4289166), (63, 4084920), (70, 3676428), (72, 3574305), (81, 3177160), (84, 3063690), (90, 2859444), (98, 2626020), (105, 2450952), (108, 2382870), (120, 2144583), (126, 2042460), (135, 1906296), (140, 1838214), (147, 1750680), (162, 1588580), (168, 1531845), (180, 1429722), (189, 1361640), (196, 1313010), (210, 1225476), (216, 1191435), (245, 1050408), (252, 1021230), (270, 953148), (280, 919107), (294, 875340), (315, 816984), (324, 794290), (360, 714861), (378, 680820), (392, 656505), (405, 635432), (420, 612738), (441, 583560), (490, 525204), (504, 510615), (540, 476574), (567, 453880), (588, 437670), (630, 408492), (648, 397145), (735, 350136), (756, 340410), (810, 317716), (840, 306369), (882, 291780), (945, 272328), (980, 262602), (1080, 238287), (1134, 226940), (1176, 218835), (1260, 204246), (1323, 194520), (1470, 175068), (1512, 170205), (1620, 158858), (1621, 158760), (1764, 145890), (1890, 136164), (1960, 131301), (2205, 116712), (2268, 113470), (2520, 102123), (2646, 97260), (2835, 90776), (2940, 87534), (3240, 79429), (3242, 79380), (3528, 72945), (3780, 68082), (3969, 64840), (4410, 58356), (4536, 56735), (4863, 52920), (5292, 48630), (5670, 45388), (5880, 43767), (6484, 39690), (6615, 38904), (7560, 34041), (7938, 32420), (8105, 31752), (8820, 29178), (9726, 26460), (10584, 24315), (11340, 22694), (11347, 22680), (12968, 19845), (13230, 19452), (14589, 17640), (15876, 16210)]