79747408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1244

約数の個数: 80

約数和(自身を含む): 185613120

約数和(自身を除く): 105865712

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 208, 221, 247, 272, 304, 323, 442, 494, 646, 884, 988, 1187, 1292, 1768, 1976, 2374, 2584, 3536, 3952, 4199, 4748, 5168, 8398, 9496, 15431, 16796, 18992, 20179, 22553, 30862, 33592, 40358, 45106, 61724, 67184, 80716, 90212, 123448, 161432, 180424, 246896, 262327, 293189, 322864, 360848, 383401, 524654, 586378, 766802, 1049308, 1172756, 1533604, 2098616, 2345512, 3067208, 4197232, 4691024, 4984213, 6134416, 9968426, 19936852, 39873704, 79747408]

約数ペア:

[(1, 79747408), (2, 39873704), (4, 19936852), (8, 9968426), (13, 6134416), (16, 4984213), (17, 4691024), (19, 4197232), (26, 3067208), (34, 2345512), (38, 2098616), (52, 1533604), (68, 1172756), (76, 1049308), (104, 766802), (136, 586378), (152, 524654), (208, 383401), (221, 360848), (247, 322864), (272, 293189), (304, 262327), (323, 246896), (442, 180424), (494, 161432), (646, 123448), (884, 90212), (988, 80716), (1187, 67184), (1292, 61724), (1768, 45106), (1976, 40358), (2374, 33592), (2584, 30862), (3536, 22553), (3952, 20179), (4199, 18992), (4748, 16796), (5168, 15431), (8398, 9496)]