2389520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 6749568

約数和(自身を除く): 4360048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 251, 272, 280, 340, 476, 502, 560, 595, 680, 952, 1004, 1190, 1255, 1360, 1757, 1904, 2008, 2380, 2510, 3514, 4016, 4267, 4760, 5020, 7028, 8534, 8785, 9520, 10040, 14056, 17068, 17570, 20080, 21335, 28112, 29869, 34136, 35140, 42670, 59738, 68272, 70280, 85340, 119476, 140560, 149345, 170680, 238952, 298690, 341360, 477904, 597380, 1194760, 2389520]

約数ペア:

[(1, 2389520), (2, 1194760), (4, 597380), (5, 477904), (7, 341360), (8, 298690), (10, 238952), (14, 170680), (16, 149345), (17, 140560), (20, 119476), (28, 85340), (34, 70280), (35, 68272), (40, 59738), (56, 42670), (68, 35140), (70, 34136), (80, 29869), (85, 28112), (112, 21335), (119, 20080), (136, 17570), (140, 17068), (170, 14056), (238, 10040), (251, 9520), (272, 8785), (280, 8534), (340, 7028), (476, 5020), (502, 4760), (560, 4267), (595, 4016), (680, 3514), (952, 2510), (1004, 2380), (1190, 2008), (1255, 1904), (1360, 1757)]