81406400

素因数分解:

$2^6\times 5^2\times {\mathrm{83}}^1\times {\mathrm{613}}^1$

素因数の和:718

約数の個数: 84

約数和(自身を含む): 203054712

約数和(自身を除く): 121648312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 83, 100, 160, 166, 200, 320, 332, 400, 415, 613, 664, 800, 830, 1226, 1328, 1600, 1660, 2075, 2452, 2656, 3065, 3320, 4150, 4904, 5312, 6130, 6640, 8300, 9808, 12260, 13280, 15325, 16600, 19616, 24520, 26560, 30650, 33200, 39232, 49040, 50879, 61300, 66400, 98080, 101758, 122600, 132800, 196160, 203516, 245200, 254395, 407032, 490400, 508790, 814064, 980800, 1017580, 1271975, 1628128, 2035160, 2543950, 3256256, 4070320, 5087900, 8140640, 10175800, 16281280, 20351600, 40703200, 81406400]

約数ペア:

[(1, 81406400), (2, 40703200), (4, 20351600), (5, 16281280), (8, 10175800), (10, 8140640), (16, 5087900), (20, 4070320), (25, 3256256), (32, 2543950), (40, 2035160), (50, 1628128), (64, 1271975), (80, 1017580), (83, 980800), (100, 814064), (160, 508790), (166, 490400), (200, 407032), (320, 254395), (332, 245200), (400, 203516), (415, 196160), (613, 132800), (664, 122600), (800, 101758), (830, 98080), (1226, 66400), (1328, 61300), (1600, 50879), (1660, 49040), (2075, 39232), (2452, 33200), (2656, 30650), (3065, 26560), (3320, 24520), (4150, 19616), (4904, 16600), (5312, 15325), (6130, 13280), (6640, 12260), (8300, 9808)]