51493520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:832

約数の個数: 80

約数和(自身を含む): 131033280

約数和(自身を除く): 79539760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 739, 871, 1040, 1072, 1340, 1478, 1742, 2680, 2956, 3484, 3695, 4355, 5360, 5912, 6968, 7390, 8710, 9607, 11824, 13936, 14780, 17420, 19214, 29560, 34840, 38428, 48035, 49513, 59120, 69680, 76856, 96070, 99026, 153712, 192140, 198052, 247565, 384280, 396104, 495130, 643669, 768560, 792208, 990260, 1287338, 1980520, 2574676, 3218345, 3961040, 5149352, 6436690, 10298704, 12873380, 25746760, 51493520]

約数ペア:

[(1, 51493520), (2, 25746760), (4, 12873380), (5, 10298704), (8, 6436690), (10, 5149352), (13, 3961040), (16, 3218345), (20, 2574676), (26, 1980520), (40, 1287338), (52, 990260), (65, 792208), (67, 768560), (80, 643669), (104, 495130), (130, 396104), (134, 384280), (208, 247565), (260, 198052), (268, 192140), (335, 153712), (520, 99026), (536, 96070), (670, 76856), (739, 69680), (871, 59120), (1040, 49513), (1072, 48035), (1340, 38428), (1478, 34840), (1742, 29560), (2680, 19214), (2956, 17420), (3484, 14780), (3695, 13936), (4355, 11824), (5360, 9607), (5912, 8710), (6968, 7390)]