18701114320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{375223}}^1$

素因数の和:375332

約数の個数: 80

約数和(自身を含む): 50249998080

約数和(自身を除く): 31548883760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1780, 2492, 3115, 3560, 4984, 6230, 7120, 9968, 12460, 24920, 49840, 375223, 750446, 1500892, 1876115, 2626561, 3001784, 3752230, 5253122, 6003568, 7504460, 10506244, 13132805, 15008920, 21012488, 26265610, 30017840, 33394847, 42024976, 52531220, 66789694, 105062440, 133579388, 166974235, 210124880, 233763929, 267158776, 333948470, 467527858, 534317552, 667896940, 935055716, 1168819645, 1335793880, 1870111432, 2337639290, 2671587760, 3740222864, 4675278580, 9350557160, 18701114320]

約数ペア:

[(1, 18701114320), (2, 9350557160), (4, 4675278580), (5, 3740222864), (7, 2671587760), (8, 2337639290), (10, 1870111432), (14, 1335793880), (16, 1168819645), (20, 935055716), (28, 667896940), (35, 534317552), (40, 467527858), (56, 333948470), (70, 267158776), (80, 233763929), (89, 210124880), (112, 166974235), (140, 133579388), (178, 105062440), (280, 66789694), (356, 52531220), (445, 42024976), (560, 33394847), (623, 30017840), (712, 26265610), (890, 21012488), (1246, 15008920), (1424, 13132805), (1780, 10506244), (2492, 7504460), (3115, 6003568), (3560, 5253122), (4984, 3752230), (6230, 3001784), (7120, 2626561), (9968, 1876115), (12460, 1500892), (24920, 750446), (49840, 375223)]