30781320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1289}}^1$

素因数の和:1502

約数の個数: 64

約数和(自身を含む): 92880000

約数和(自身を除く): 62098680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 199, 398, 597, 796, 995, 1194, 1289, 1592, 1990, 2388, 2578, 2985, 3867, 3980, 4776, 5156, 5970, 6445, 7734, 7960, 10312, 11940, 12890, 15468, 19335, 23880, 25780, 30936, 38670, 51560, 77340, 154680, 256511, 513022, 769533, 1026044, 1282555, 1539066, 2052088, 2565110, 3078132, 3847665, 5130220, 6156264, 7695330, 10260440, 15390660, 30781320]

約数ペア:

[(1, 30781320), (2, 15390660), (3, 10260440), (4, 7695330), (5, 6156264), (6, 5130220), (8, 3847665), (10, 3078132), (12, 2565110), (15, 2052088), (20, 1539066), (24, 1282555), (30, 1026044), (40, 769533), (60, 513022), (120, 256511), (199, 154680), (398, 77340), (597, 51560), (796, 38670), (995, 30936), (1194, 25780), (1289, 23880), (1592, 19335), (1990, 15468), (2388, 12890), (2578, 11940), (2985, 10312), (3867, 7960), (3980, 7734), (4776, 6445), (5156, 5970)]