991181640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{23399}}^1$

素因数の和:23766

約数の個数: 64

約数和(自身を含む): 2982096000

約数和(自身を除く): 1990914360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 353, 706, 1059, 1412, 1765, 2118, 2824, 3530, 4236, 5295, 7060, 8472, 10590, 14120, 21180, 23399, 42360, 46798, 70197, 93596, 116995, 140394, 187192, 233990, 280788, 350985, 467980, 561576, 701970, 935960, 1403940, 2807880, 8259847, 16519694, 24779541, 33039388, 41299235, 49559082, 66078776, 82598470, 99118164, 123897705, 165196940, 198236328, 247795410, 330393880, 495590820, 991181640]

約数ペア:

[(1, 991181640), (2, 495590820), (3, 330393880), (4, 247795410), (5, 198236328), (6, 165196940), (8, 123897705), (10, 99118164), (12, 82598470), (15, 66078776), (20, 49559082), (24, 41299235), (30, 33039388), (40, 24779541), (60, 16519694), (120, 8259847), (353, 2807880), (706, 1403940), (1059, 935960), (1412, 701970), (1765, 561576), (2118, 467980), (2824, 350985), (3530, 280788), (4236, 233990), (5295, 187192), (7060, 140394), (8472, 116995), (10590, 93596), (14120, 70197), (21180, 46798), (23399, 42360)]