261985360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 240

約数和(自身を含む): 785480976

約数和(自身を除く): 523495616

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 53, 56, 65, 70, 80, 91, 97, 98, 104, 106, 112, 130, 140, 182, 194, 196, 208, 212, 245, 260, 265, 280, 364, 371, 388, 392, 424, 455, 485, 490, 520, 530, 560, 637, 679, 689, 728, 742, 776, 784, 848, 910, 970, 980, 1040, 1060, 1261, 1274, 1358, 1378, 1456, 1484, 1552, 1820, 1855, 1940, 1960, 2120, 2522, 2548, 2597, 2716, 2756, 2968, 3185, 3395, 3445, 3640, 3710, 3880, 3920, 4240, 4753, 4823, 5044, 5096, 5141, 5194, 5432, 5512, 5936, 6305, 6370, 6790, 6890, 7280, 7420, 7760, 8827, 9506, 9646, 10088, 10192, 10282, 10388, 10864, 11024, 12610, 12740, 12985, 13580, 13780, 14840, 17654, 19012, 19292, 20176, 20564, 20776, 23765, 24115, 25220, 25480, 25705, 25970, 27160, 27560, 29680, 33761, 35308, 35987, 38024, 38584, 41128, 41552, 44135, 47530, 48230, 50440, 50960, 51410, 51940, 54320, 55120, 61789, 66833, 67522, 70616, 71974, 76048, 77168, 82256, 88270, 95060, 96460, 100880, 102820, 103880, 123578, 133666, 135044, 141232, 143948, 168805, 176540, 179935, 190120, 192920, 205640, 207760, 247156, 251909, 267332, 270088, 287896, 308945, 334165, 337610, 353080, 359870, 380240, 385840, 411280, 467831, 494312, 503818, 534664, 540176, 575792, 617890, 668330, 675220, 706160, 719740, 935662, 988624, 1007636, 1069328, 1235780, 1259545, 1336660, 1350440, 1439480, 1871324, 2015272, 2339155, 2471560, 2519090, 2673320, 2700880, 2878960, 3274817, 3742648, 4030544, 4678310, 4943120, 5038180, 5346640, 6549634, 7485296, 9356620, 10076360, 13099268, 16374085, 18713240, 20152720, 26198536, 32748170, 37426480, 52397072, 65496340, 130992680, 261985360]

約数ペア:

[(1, 261985360), (2, 130992680), (4, 65496340), (5, 52397072), (7, 37426480), (8, 32748170), (10, 26198536), (13, 20152720), (14, 18713240), (16, 16374085), (20, 13099268), (26, 10076360), (28, 9356620), (35, 7485296), (40, 6549634), (49, 5346640), (52, 5038180), (53, 4943120), (56, 4678310), (65, 4030544), (70, 3742648), (80, 3274817), (91, 2878960), (97, 2700880), (98, 2673320), (104, 2519090), (106, 2471560), (112, 2339155), (130, 2015272), (140, 1871324), (182, 1439480), (194, 1350440), (196, 1336660), (208, 1259545), (212, 1235780), (245, 1069328), (260, 1007636), (265, 988624), (280, 935662), (364, 719740), (371, 706160), (388, 675220), (392, 668330), (424, 617890), (455, 575792), (485, 540176), (490, 534664), (520, 503818), (530, 494312), (560, 467831), (637, 411280), (679, 385840), (689, 380240), (728, 359870), (742, 353080), (776, 337610), (784, 334165), (848, 308945), (910, 287896), (970, 270088), (980, 267332), (1040, 251909), (1060, 247156), (1261, 207760), (1274, 205640), (1358, 192920), (1378, 190120), (1456, 179935), (1484, 176540), (1552, 168805), (1820, 143948), (1855, 141232), (1940, 135044), (1960, 133666), (2120, 123578), (2522, 103880), (2548, 102820), (2597, 100880), (2716, 96460), (2756, 95060), (2968, 88270), (3185, 82256), (3395, 77168), (3445, 76048), (3640, 71974), (3710, 70616), (3880, 67522), (3920, 66833), (4240, 61789), (4753, 55120), (4823, 54320), (5044, 51940), (5096, 51410), (5141, 50960), (5194, 50440), (5432, 48230), (5512, 47530), (5936, 44135), (6305, 41552), (6370, 41128), (6790, 38584), (6890, 38024), (7280, 35987), (7420, 35308), (7760, 33761), (8827, 29680), (9506, 27560), (9646, 27160), (10088, 25970), (10192, 25705), (10282, 25480), (10388, 25220), (10864, 24115), (11024, 23765), (12610, 20776), (12740, 20564), (12985, 20176), (13580, 19292), (13780, 19012), (14840, 17654)]