51857320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 121130640

約数和(自身を除く): 69273320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 244, 265, 305, 401, 424, 488, 530, 610, 802, 1060, 1220, 1604, 2005, 2120, 2440, 3208, 3233, 4010, 6466, 8020, 12932, 16040, 16165, 21253, 24461, 25864, 32330, 42506, 48922, 64660, 85012, 97844, 106265, 122305, 129320, 170024, 195688, 212530, 244610, 425060, 489220, 850120, 978440, 1296433, 2592866, 5185732, 6482165, 10371464, 12964330, 25928660, 51857320]

約数ペア:

[(1, 51857320), (2, 25928660), (4, 12964330), (5, 10371464), (8, 6482165), (10, 5185732), (20, 2592866), (40, 1296433), (53, 978440), (61, 850120), (106, 489220), (122, 425060), (212, 244610), (244, 212530), (265, 195688), (305, 170024), (401, 129320), (424, 122305), (488, 106265), (530, 97844), (610, 85012), (802, 64660), (1060, 48922), (1220, 42506), (1604, 32330), (2005, 25864), (2120, 24461), (2440, 21253), (3208, 16165), (3233, 16040), (4010, 12932), (6466, 8020)]