128028400

素因数分解:

$2^4\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1217}}^1$

素因数の和:1498

約数の個数: 60

約数和(自身を含む): 309011472

約数和(自身を除く): 180983072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 263, 400, 526, 1052, 1217, 1315, 2104, 2434, 2630, 4208, 4868, 5260, 6085, 6575, 9736, 10520, 12170, 13150, 19472, 21040, 24340, 26300, 30425, 48680, 52600, 60850, 97360, 105200, 121700, 243400, 320071, 486800, 640142, 1280284, 1600355, 2560568, 3200710, 5121136, 6401420, 8001775, 12802840, 16003550, 25605680, 32007100, 64014200, 128028400]

約数ペア:

[(1, 128028400), (2, 64014200), (4, 32007100), (5, 25605680), (8, 16003550), (10, 12802840), (16, 8001775), (20, 6401420), (25, 5121136), (40, 3200710), (50, 2560568), (80, 1600355), (100, 1280284), (200, 640142), (263, 486800), (400, 320071), (526, 243400), (1052, 121700), (1217, 105200), (1315, 97360), (2104, 60850), (2434, 52600), (2630, 48680), (4208, 30425), (4868, 26300), (5260, 24340), (6085, 21040), (6575, 19472), (9736, 13150), (10520, 12170)]