257319480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11467}}^1$

素因数の和:11509

約数の個数: 128

約数和(自身を含む): 891751680

約数和(自身を除く): 634432200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 33, 34, 40, 44, 51, 55, 60, 66, 68, 85, 88, 102, 110, 120, 132, 136, 165, 170, 187, 204, 220, 255, 264, 330, 340, 374, 408, 440, 510, 561, 660, 680, 748, 935, 1020, 1122, 1320, 1496, 1870, 2040, 2244, 2805, 3740, 4488, 5610, 7480, 11220, 11467, 22440, 22934, 34401, 45868, 57335, 68802, 91736, 114670, 126137, 137604, 172005, 194939, 229340, 252274, 275208, 344010, 378411, 389878, 458680, 504548, 584817, 630685, 688020, 756822, 779756, 974695, 1009096, 1169634, 1261370, 1376040, 1513644, 1559512, 1892055, 1949390, 2144329, 2339268, 2522740, 2924085, 3027288, 3784110, 3898780, 4288658, 4678536, 5045480, 5848170, 6432987, 7568220, 7797560, 8577316, 10721645, 11696340, 12865974, 15136440, 17154632, 21443290, 23392680, 25731948, 32164935, 42886580, 51463896, 64329870, 85773160, 128659740, 257319480]

約数ペア:

[(1, 257319480), (2, 128659740), (3, 85773160), (4, 64329870), (5, 51463896), (6, 42886580), (8, 32164935), (10, 25731948), (11, 23392680), (12, 21443290), (15, 17154632), (17, 15136440), (20, 12865974), (22, 11696340), (24, 10721645), (30, 8577316), (33, 7797560), (34, 7568220), (40, 6432987), (44, 5848170), (51, 5045480), (55, 4678536), (60, 4288658), (66, 3898780), (68, 3784110), (85, 3027288), (88, 2924085), (102, 2522740), (110, 2339268), (120, 2144329), (132, 1949390), (136, 1892055), (165, 1559512), (170, 1513644), (187, 1376040), (204, 1261370), (220, 1169634), (255, 1009096), (264, 974695), (330, 779756), (340, 756822), (374, 688020), (408, 630685), (440, 584817), (510, 504548), (561, 458680), (660, 389878), (680, 378411), (748, 344010), (935, 275208), (1020, 252274), (1122, 229340), (1320, 194939), (1496, 172005), (1870, 137604), (2040, 126137), (2244, 114670), (2805, 91736), (3740, 68802), (4488, 57335), (5610, 45868), (7480, 34401), (11220, 22934), (11467, 22440)]