64279964

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 141437520

約数和(自身を除く): 77157556

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 49, 76, 82, 98, 133, 164, 196, 266, 287, 421, 532, 574, 779, 842, 931, 1148, 1558, 1684, 1862, 2009, 2947, 3116, 3724, 4018, 5453, 5894, 7999, 8036, 10906, 11788, 15998, 17261, 20629, 21812, 31996, 34522, 38171, 41258, 55993, 69044, 76342, 82516, 111986, 120827, 152684, 223972, 241654, 327959, 391951, 483308, 655918, 783902, 845789, 1311836, 1567804, 1691578, 2295713, 3383156, 4591426, 9182852, 16069991, 32139982, 64279964]

約数ペア:

[(1, 64279964), (2, 32139982), (4, 16069991), (7, 9182852), (14, 4591426), (19, 3383156), (28, 2295713), (38, 1691578), (41, 1567804), (49, 1311836), (76, 845789), (82, 783902), (98, 655918), (133, 483308), (164, 391951), (196, 327959), (266, 241654), (287, 223972), (421, 152684), (532, 120827), (574, 111986), (779, 82516), (842, 76342), (931, 69044), (1148, 55993), (1558, 41258), (1684, 38171), (1862, 34522), (2009, 31996), (2947, 21812), (3116, 20629), (3724, 17261), (4018, 15998), (5453, 11788), (5894, 10906), (7999, 8036)]