20864850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{7321}}^1$

素因数の和:7355

約数の個数: 48

約数和(自身を含む): 54475680

約数和(自身を除く): 33610830

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 150, 190, 285, 475, 570, 950, 1425, 2850, 7321, 14642, 21963, 36605, 43926, 73210, 109815, 139099, 183025, 219630, 278198, 366050, 417297, 549075, 695495, 834594, 1098150, 1390990, 2086485, 3477475, 4172970, 6954950, 10432425, 20864850]

約数ペア:

[(1, 20864850), (2, 10432425), (3, 6954950), (5, 4172970), (6, 3477475), (10, 2086485), (15, 1390990), (19, 1098150), (25, 834594), (30, 695495), (38, 549075), (50, 417297), (57, 366050), (75, 278198), (95, 219630), (114, 183025), (150, 139099), (190, 109815), (285, 73210), (475, 43926), (570, 36605), (950, 21963), (1425, 14642), (2850, 7321)]