2178613640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{49559}}^1$

素因数の和:49734

約数の個数: 64

約数和(自身を含む): 5637945600

約数和(自身を除く): 3459331960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 2198, 3140, 4396, 5495, 6280, 8792, 10990, 21980, 43960, 49559, 99118, 198236, 247795, 346913, 396472, 495590, 693826, 991180, 1387652, 1734565, 1982360, 2775304, 3469130, 6938260, 7780763, 13876520, 15561526, 31123052, 38903815, 54465341, 62246104, 77807630, 108930682, 155615260, 217861364, 272326705, 311230520, 435722728, 544653410, 1089306820, 2178613640]

約数ペア:

[(1, 2178613640), (2, 1089306820), (4, 544653410), (5, 435722728), (7, 311230520), (8, 272326705), (10, 217861364), (14, 155615260), (20, 108930682), (28, 77807630), (35, 62246104), (40, 54465341), (56, 38903815), (70, 31123052), (140, 15561526), (157, 13876520), (280, 7780763), (314, 6938260), (628, 3469130), (785, 2775304), (1099, 1982360), (1256, 1734565), (1570, 1387652), (2198, 991180), (3140, 693826), (4396, 495590), (5495, 396472), (6280, 346913), (8792, 247795), (10990, 198236), (21980, 99118), (43960, 49559)]