66705808

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16879}}^1$

素因数の和:16919

約数の個数: 40

約数和(自身を含む): 146518400

約数和(自身を除く): 79812592

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 16879, 33758, 67516, 135032, 219427, 270064, 320701, 438854, 641402, 877708, 1282804, 1755416, 2565608, 3510832, 4169113, 5131216, 8338226, 16676452, 33352904, 66705808]

約数ペア:

[(1, 66705808), (2, 33352904), (4, 16676452), (8, 8338226), (13, 5131216), (16, 4169113), (19, 3510832), (26, 2565608), (38, 1755416), (52, 1282804), (76, 877708), (104, 641402), (152, 438854), (208, 320701), (247, 270064), (304, 219427), (494, 135032), (988, 67516), (1976, 33758), (3952, 16879)]