261802380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1064

約数の個数: 192

約数和(自身を含む): 911941632

約数和(自身を除く): 650139252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 37, 42, 51, 60, 68, 70, 74, 84, 85, 102, 105, 111, 119, 140, 148, 170, 185, 204, 210, 222, 238, 255, 259, 340, 357, 370, 420, 444, 476, 510, 518, 555, 595, 629, 714, 740, 777, 991, 1020, 1036, 1110, 1190, 1258, 1295, 1428, 1554, 1785, 1887, 1982, 2220, 2380, 2516, 2590, 2973, 3108, 3145, 3570, 3774, 3885, 3964, 4403, 4955, 5180, 5946, 6290, 6937, 7140, 7548, 7770, 8806, 9435, 9910, 11892, 12580, 13209, 13874, 14865, 15540, 16847, 17612, 18870, 19820, 20811, 22015, 26418, 27748, 29730, 33694, 34685, 36667, 37740, 41622, 44030, 50541, 52836, 59460, 66045, 67388, 69370, 73334, 83244, 84235, 88060, 101082, 104055, 110001, 117929, 132090, 138740, 146668, 168470, 183335, 202164, 208110, 220002, 235858, 252705, 256669, 264180, 336940, 353787, 366670, 416220, 440004, 471716, 505410, 513338, 550005, 589645, 623339, 707574, 733340, 770007, 1010820, 1026676, 1100010, 1179290, 1246678, 1283345, 1415148, 1540014, 1768935, 1870017, 2200020, 2358580, 2493356, 2566690, 3080028, 3116695, 3537870, 3740034, 3850035, 4363373, 5133380, 6233390, 7075740, 7480068, 7700070, 8726746, 9350085, 12466780, 13090119, 15400140, 17453492, 18700170, 21816865, 26180238, 37400340, 43633730, 52360476, 65450595, 87267460, 130901190, 261802380]

約数ペア:

[(1, 261802380), (2, 130901190), (3, 87267460), (4, 65450595), (5, 52360476), (6, 43633730), (7, 37400340), (10, 26180238), (12, 21816865), (14, 18700170), (15, 17453492), (17, 15400140), (20, 13090119), (21, 12466780), (28, 9350085), (30, 8726746), (34, 7700070), (35, 7480068), (37, 7075740), (42, 6233390), (51, 5133380), (60, 4363373), (68, 3850035), (70, 3740034), (74, 3537870), (84, 3116695), (85, 3080028), (102, 2566690), (105, 2493356), (111, 2358580), (119, 2200020), (140, 1870017), (148, 1768935), (170, 1540014), (185, 1415148), (204, 1283345), (210, 1246678), (222, 1179290), (238, 1100010), (255, 1026676), (259, 1010820), (340, 770007), (357, 733340), (370, 707574), (420, 623339), (444, 589645), (476, 550005), (510, 513338), (518, 505410), (555, 471716), (595, 440004), (629, 416220), (714, 366670), (740, 353787), (777, 336940), (991, 264180), (1020, 256669), (1036, 252705), (1110, 235858), (1190, 220002), (1258, 208110), (1295, 202164), (1428, 183335), (1554, 168470), (1785, 146668), (1887, 138740), (1982, 132090), (2220, 117929), (2380, 110001), (2516, 104055), (2590, 101082), (2973, 88060), (3108, 84235), (3145, 83244), (3570, 73334), (3774, 69370), (3885, 67388), (3964, 66045), (4403, 59460), (4955, 52836), (5180, 50541), (5946, 44030), (6290, 41622), (6937, 37740), (7140, 36667), (7548, 34685), (7770, 33694), (8806, 29730), (9435, 27748), (9910, 26418), (11892, 22015), (12580, 20811), (13209, 19820), (13874, 18870), (14865, 17612), (15540, 16847)]