256674420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:340

約数の個数: 240

約数和(自身を含む): 878169600

約数和(自身を除く): 621495180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 31, 36, 38, 45, 54, 57, 60, 62, 76, 81, 90, 93, 95, 108, 114, 124, 135, 155, 162, 171, 180, 186, 190, 228, 269, 270, 279, 285, 310, 324, 342, 372, 380, 405, 465, 513, 538, 540, 558, 570, 589, 620, 684, 807, 810, 837, 855, 930, 1026, 1076, 1116, 1140, 1178, 1345, 1395, 1539, 1614, 1620, 1674, 1710, 1767, 1860, 2052, 2356, 2421, 2511, 2565, 2690, 2790, 2945, 3078, 3228, 3348, 3420, 3534, 4035, 4185, 4842, 5022, 5111, 5130, 5301, 5380, 5580, 5890, 6156, 7068, 7263, 7695, 8070, 8339, 8370, 8835, 9684, 10044, 10222, 10260, 10602, 11780, 12105, 12555, 14526, 15333, 15390, 15903, 16140, 16678, 16740, 17670, 20444, 21204, 21789, 24210, 25017, 25110, 25555, 26505, 29052, 30666, 30780, 31806, 33356, 35340, 36315, 41695, 43578, 45999, 47709, 48420, 50034, 50220, 51110, 53010, 61332, 63612, 72630, 75051, 76665, 79515, 83390, 87156, 91998, 95418, 100068, 102220, 106020, 108945, 125085, 137997, 145260, 150102, 153330, 158441, 159030, 166780, 183996, 190836, 217890, 225153, 229995, 238545, 250170, 275994, 300204, 306660, 316882, 318060, 375255, 413991, 435780, 450306, 459990, 475323, 477090, 500340, 551988, 633764, 675459, 689985, 750510, 792205, 827982, 900612, 919980, 950646, 954180, 1125765, 1350918, 1379970, 1425969, 1501020, 1584410, 1655964, 1901292, 2069955, 2251530, 2376615, 2701836, 2759940, 2851938, 3168820, 3377295, 4139910, 4277907, 4503060, 4753230, 5703876, 6754590, 7129845, 8279820, 8555814, 9506460, 12833721, 13509180, 14259690, 17111628, 21389535, 25667442, 28519380, 42779070, 51334884, 64168605, 85558140, 128337210, 256674420]

約数ペア:

[(1, 256674420), (2, 128337210), (3, 85558140), (4, 64168605), (5, 51334884), (6, 42779070), (9, 28519380), (10, 25667442), (12, 21389535), (15, 17111628), (18, 14259690), (19, 13509180), (20, 12833721), (27, 9506460), (30, 8555814), (31, 8279820), (36, 7129845), (38, 6754590), (45, 5703876), (54, 4753230), (57, 4503060), (60, 4277907), (62, 4139910), (76, 3377295), (81, 3168820), (90, 2851938), (93, 2759940), (95, 2701836), (108, 2376615), (114, 2251530), (124, 2069955), (135, 1901292), (155, 1655964), (162, 1584410), (171, 1501020), (180, 1425969), (186, 1379970), (190, 1350918), (228, 1125765), (269, 954180), (270, 950646), (279, 919980), (285, 900612), (310, 827982), (324, 792205), (342, 750510), (372, 689985), (380, 675459), (405, 633764), (465, 551988), (513, 500340), (538, 477090), (540, 475323), (558, 459990), (570, 450306), (589, 435780), (620, 413991), (684, 375255), (807, 318060), (810, 316882), (837, 306660), (855, 300204), (930, 275994), (1026, 250170), (1076, 238545), (1116, 229995), (1140, 225153), (1178, 217890), (1345, 190836), (1395, 183996), (1539, 166780), (1614, 159030), (1620, 158441), (1674, 153330), (1710, 150102), (1767, 145260), (1860, 137997), (2052, 125085), (2356, 108945), (2421, 106020), (2511, 102220), (2565, 100068), (2690, 95418), (2790, 91998), (2945, 87156), (3078, 83390), (3228, 79515), (3348, 76665), (3420, 75051), (3534, 72630), (4035, 63612), (4185, 61332), (4842, 53010), (5022, 51110), (5111, 50220), (5130, 50034), (5301, 48420), (5380, 47709), (5580, 45999), (5890, 43578), (6156, 41695), (7068, 36315), (7263, 35340), (7695, 33356), (8070, 31806), (8339, 30780), (8370, 30666), (8835, 29052), (9684, 26505), (10044, 25555), (10222, 25110), (10260, 25017), (10602, 24210), (11780, 21789), (12105, 21204), (12555, 20444), (14526, 17670), (15333, 16740), (15390, 16678), (15903, 16140)]