20610960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 64418496

約数和(自身を除く): 43807536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 547, 628, 785, 942, 1094, 1256, 1570, 1641, 1884, 2188, 2355, 2512, 2735, 3140, 3282, 3768, 4376, 4710, 5470, 6280, 6564, 7536, 8205, 8752, 9420, 10940, 12560, 13128, 16410, 18840, 21880, 26256, 32820, 37680, 43760, 65640, 85879, 131280, 171758, 257637, 343516, 429395, 515274, 687032, 858790, 1030548, 1288185, 1374064, 1717580, 2061096, 2576370, 3435160, 4122192, 5152740, 6870320, 10305480, 20610960]

約数ペア:

[(1, 20610960), (2, 10305480), (3, 6870320), (4, 5152740), (5, 4122192), (6, 3435160), (8, 2576370), (10, 2061096), (12, 1717580), (15, 1374064), (16, 1288185), (20, 1030548), (24, 858790), (30, 687032), (40, 515274), (48, 429395), (60, 343516), (80, 257637), (120, 171758), (157, 131280), (240, 85879), (314, 65640), (471, 43760), (547, 37680), (628, 32820), (785, 26256), (942, 21880), (1094, 18840), (1256, 16410), (1570, 13128), (1641, 12560), (1884, 10940), (2188, 9420), (2355, 8752), (2512, 8205), (2735, 7536), (3140, 6564), (3282, 6280), (3768, 5470), (4376, 4710)]