8261840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1693}}^1$

素因数の和:1767

約数の個数: 40

約数和(自身を含む): 19535208

約数和(自身を除く): 11273368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1693, 2440, 3386, 4880, 6772, 8465, 13544, 16930, 27088, 33860, 67720, 103273, 135440, 206546, 413092, 516365, 826184, 1032730, 1652368, 2065460, 4130920, 8261840]

約数ペア:

[(1, 8261840), (2, 4130920), (4, 2065460), (5, 1652368), (8, 1032730), (10, 826184), (16, 516365), (20, 413092), (40, 206546), (61, 135440), (80, 103273), (122, 67720), (244, 33860), (305, 27088), (488, 16930), (610, 13544), (976, 8465), (1220, 6772), (1693, 4880), (2440, 3386)]