51401980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 129024000

約数和(自身を除く): 77622020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 59, 70, 98, 118, 127, 140, 196, 236, 245, 254, 295, 343, 413, 490, 508, 590, 635, 686, 826, 889, 980, 1180, 1270, 1372, 1652, 1715, 1778, 2065, 2540, 2891, 3430, 3556, 4130, 4445, 5782, 6223, 6860, 7493, 8260, 8890, 11564, 12446, 14455, 14986, 17780, 20237, 24892, 28910, 29972, 31115, 37465, 40474, 43561, 52451, 57820, 62230, 74930, 80948, 87122, 101185, 104902, 124460, 149860, 174244, 202370, 209804, 217805, 262255, 367157, 404740, 435610, 524510, 734314, 871220, 1049020, 1468628, 1835785, 2570099, 3671570, 5140198, 7343140, 10280396, 12850495, 25700990, 51401980]

約数ペア:

[(1, 51401980), (2, 25700990), (4, 12850495), (5, 10280396), (7, 7343140), (10, 5140198), (14, 3671570), (20, 2570099), (28, 1835785), (35, 1468628), (49, 1049020), (59, 871220), (70, 734314), (98, 524510), (118, 435610), (127, 404740), (140, 367157), (196, 262255), (236, 217805), (245, 209804), (254, 202370), (295, 174244), (343, 149860), (413, 124460), (490, 104902), (508, 101185), (590, 87122), (635, 80948), (686, 74930), (826, 62230), (889, 57820), (980, 52451), (1180, 43561), (1270, 40474), (1372, 37465), (1652, 31115), (1715, 29972), (1778, 28910), (2065, 24892), (2540, 20237), (2891, 17780), (3430, 14986), (3556, 14455), (4130, 12446), (4445, 11564), (5782, 8890), (6223, 8260), (6860, 7493)]