8978940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{601}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 27610128

約数和(自身を除く): 18631188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 601, 747, 830, 996, 1202, 1245, 1494, 1660, 1803, 2404, 2490, 2988, 3005, 3606, 3735, 4980, 5409, 6010, 7212, 7470, 9015, 10818, 12020, 14940, 18030, 21636, 27045, 36060, 49883, 54090, 99766, 108180, 149649, 199532, 249415, 299298, 448947, 498830, 598596, 748245, 897894, 997660, 1496490, 1795788, 2244735, 2992980, 4489470, 8978940]

約数ペア:

[(1, 8978940), (2, 4489470), (3, 2992980), (4, 2244735), (5, 1795788), (6, 1496490), (9, 997660), (10, 897894), (12, 748245), (15, 598596), (18, 498830), (20, 448947), (30, 299298), (36, 249415), (45, 199532), (60, 149649), (83, 108180), (90, 99766), (166, 54090), (180, 49883), (249, 36060), (332, 27045), (415, 21636), (498, 18030), (601, 14940), (747, 12020), (830, 10818), (996, 9015), (1202, 7470), (1245, 7212), (1494, 6010), (1660, 5409), (1803, 4980), (2404, 3735), (2490, 3606), (2988, 3005)]