19973589680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{8191}}^1$

素因数の和:8395

約数の個数: 160

約数和(自身を含む): 53975973888

約数和(自身を除く): 34002384208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 163, 170, 176, 187, 220, 272, 326, 340, 374, 440, 652, 680, 748, 815, 880, 935, 1304, 1360, 1496, 1630, 1793, 1870, 2608, 2771, 2992, 3260, 3586, 3740, 5542, 6520, 7172, 7480, 8191, 8965, 11084, 13040, 13855, 14344, 14960, 16382, 17930, 22168, 27710, 28688, 30481, 32764, 35860, 40955, 44336, 55420, 60962, 65528, 71720, 81910, 90101, 110840, 121924, 131056, 139247, 143440, 152405, 163820, 180202, 221680, 243848, 278494, 304810, 327640, 360404, 450505, 487696, 556988, 609620, 655280, 696235, 720808, 901010, 1113976, 1219240, 1335133, 1392470, 1441616, 1531717, 1802020, 2227952, 2438480, 2670266, 2784940, 3063434, 3604040, 5340532, 5569880, 6126868, 6675665, 7208080, 7658585, 10681064, 11139760, 12253736, 13351330, 14686463, 15317170, 21362128, 22697261, 24507472, 26702660, 29372926, 30634340, 45394522, 53405320, 58745852, 61268680, 73432315, 90789044, 106810640, 113486305, 117491704, 122537360, 146864630, 181578088, 226972610, 234983408, 249669871, 293729260, 363156176, 453945220, 499339742, 587458520, 907890440, 998679484, 1174917040, 1248349355, 1815780880, 1997358968, 2496698710, 3994717936, 4993397420, 9986794840, 19973589680]

約数ペア:

[(1, 19973589680), (2, 9986794840), (4, 4993397420), (5, 3994717936), (8, 2496698710), (10, 1997358968), (11, 1815780880), (16, 1248349355), (17, 1174917040), (20, 998679484), (22, 907890440), (34, 587458520), (40, 499339742), (44, 453945220), (55, 363156176), (68, 293729260), (80, 249669871), (85, 234983408), (88, 226972610), (110, 181578088), (136, 146864630), (163, 122537360), (170, 117491704), (176, 113486305), (187, 106810640), (220, 90789044), (272, 73432315), (326, 61268680), (340, 58745852), (374, 53405320), (440, 45394522), (652, 30634340), (680, 29372926), (748, 26702660), (815, 24507472), (880, 22697261), (935, 21362128), (1304, 15317170), (1360, 14686463), (1496, 13351330), (1630, 12253736), (1793, 11139760), (1870, 10681064), (2608, 7658585), (2771, 7208080), (2992, 6675665), (3260, 6126868), (3586, 5569880), (3740, 5340532), (5542, 3604040), (6520, 3063434), (7172, 2784940), (7480, 2670266), (8191, 2438480), (8965, 2227952), (11084, 1802020), (13040, 1531717), (13855, 1441616), (14344, 1392470), (14960, 1335133), (16382, 1219240), (17930, 1113976), (22168, 901010), (27710, 720808), (28688, 696235), (30481, 655280), (32764, 609620), (35860, 556988), (40955, 487696), (44336, 450505), (55420, 360404), (60962, 327640), (65528, 304810), (71720, 278494), (81910, 243848), (90101, 221680), (110840, 180202), (121924, 163820), (131056, 152405), (139247, 143440)]