1616071040

素因数分解:

$2^7\times 5^1\times {\mathrm{199}}^1\times {\mathrm{12689}}^1$

素因数の和:12907

約数の個数: 64

約数和(自身を含む): 3883140000

約数和(自身を除く): 2267068960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 199, 320, 398, 640, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 12689, 12736, 15920, 25378, 25472, 31840, 50756, 63445, 63680, 101512, 126890, 127360, 203024, 253780, 406048, 507560, 812096, 1015120, 1624192, 2030240, 2525111, 4060480, 5050222, 8120960, 10100444, 12625555, 20200888, 25251110, 40401776, 50502220, 80803552, 101004440, 161607104, 202008880, 323214208, 404017760, 808035520, 1616071040]

約数ペア:

[(1, 1616071040), (2, 808035520), (4, 404017760), (5, 323214208), (8, 202008880), (10, 161607104), (16, 101004440), (20, 80803552), (32, 50502220), (40, 40401776), (64, 25251110), (80, 20200888), (128, 12625555), (160, 10100444), (199, 8120960), (320, 5050222), (398, 4060480), (640, 2525111), (796, 2030240), (995, 1624192), (1592, 1015120), (1990, 812096), (3184, 507560), (3980, 406048), (6368, 253780), (7960, 203024), (12689, 127360), (12736, 126890), (15920, 101512), (25378, 63680), (25472, 63445), (31840, 50756)]