20165935076

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{383}}^1\times {\mathrm{5209}}^1$

素因数の和:5641

約数の個数: 72

約数和(自身を含む): 42685655040

約数和(自身を除く): 22519719964

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 383, 532, 722, 766, 1444, 1532, 2527, 2681, 5054, 5209, 5362, 7277, 10108, 10418, 10724, 14554, 20836, 29108, 36463, 50939, 72926, 98971, 101878, 138263, 145852, 197942, 203756, 276526, 395884, 553052, 692797, 967841, 1385594, 1880449, 1935682, 1995047, 2771188, 3760898, 3871364, 3990094, 7521796, 7980188, 13163143, 13965329, 26326286, 27930658, 37905893, 52652572, 55861316, 75811786, 151623572, 265341251, 530682502, 720211967, 1061365004, 1440423934, 2880847868, 5041483769, 10082967538, 20165935076]

約数ペア:

[(1, 20165935076), (2, 10082967538), (4, 5041483769), (7, 2880847868), (14, 1440423934), (19, 1061365004), (28, 720211967), (38, 530682502), (76, 265341251), (133, 151623572), (266, 75811786), (361, 55861316), (383, 52652572), (532, 37905893), (722, 27930658), (766, 26326286), (1444, 13965329), (1532, 13163143), (2527, 7980188), (2681, 7521796), (5054, 3990094), (5209, 3871364), (5362, 3760898), (7277, 2771188), (10108, 1995047), (10418, 1935682), (10724, 1880449), (14554, 1385594), (20836, 967841), (29108, 692797), (36463, 553052), (50939, 395884), (72926, 276526), (98971, 203756), (101878, 197942), (138263, 145852)]