81268852

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 176517600

約数和(自身を除く): 95248748

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 139, 157, 196, 266, 278, 314, 532, 556, 628, 931, 973, 1099, 1862, 1946, 2198, 2641, 2983, 3724, 3892, 4396, 5282, 5966, 6811, 7693, 10564, 11932, 13622, 15386, 18487, 20881, 21823, 27244, 30772, 36974, 41762, 43646, 73948, 83524, 87292, 129409, 146167, 152761, 258818, 292334, 305522, 414637, 517636, 584668, 611044, 829274, 1069327, 1658548, 2138654, 2902459, 4277308, 5804918, 11609836, 20317213, 40634426, 81268852]

約数ペア:

[(1, 81268852), (2, 40634426), (4, 20317213), (7, 11609836), (14, 5804918), (19, 4277308), (28, 2902459), (38, 2138654), (49, 1658548), (76, 1069327), (98, 829274), (133, 611044), (139, 584668), (157, 517636), (196, 414637), (266, 305522), (278, 292334), (314, 258818), (532, 152761), (556, 146167), (628, 129409), (931, 87292), (973, 83524), (1099, 73948), (1862, 43646), (1946, 41762), (2198, 36974), (2641, 30772), (2983, 27244), (3724, 21823), (3892, 20881), (4396, 18487), (5282, 15386), (5966, 13622), (6811, 11932), (7693, 10564)]