20857350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{659}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 52050240

約数和(自身を除く): 31192890

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 211, 422, 633, 659, 1055, 1266, 1318, 1977, 2110, 3165, 3295, 3954, 5275, 6330, 6590, 9885, 10550, 15825, 16475, 19770, 31650, 32950, 49425, 98850, 139049, 278098, 417147, 695245, 834294, 1390490, 2085735, 3476225, 4171470, 6952450, 10428675, 20857350]

約数ペア:

[(1, 20857350), (2, 10428675), (3, 6952450), (5, 4171470), (6, 3476225), (10, 2085735), (15, 1390490), (25, 834294), (30, 695245), (50, 417147), (75, 278098), (150, 139049), (211, 98850), (422, 49425), (633, 32950), (659, 31650), (1055, 19770), (1266, 16475), (1318, 15825), (1977, 10550), (2110, 9885), (3165, 6590), (3295, 6330), (3954, 5275)]