28203315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 55357440

約数和(自身を除く): 27154125

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 67, 95, 105, 133, 201, 211, 285, 335, 399, 469, 633, 665, 1005, 1055, 1273, 1407, 1477, 1995, 2345, 3165, 3819, 4009, 4431, 6365, 7035, 7385, 8911, 12027, 14137, 19095, 20045, 22155, 26733, 28063, 42411, 44555, 60135, 70685, 84189, 98959, 133665, 140315, 212055, 268603, 296877, 420945, 494795, 805809, 1343015, 1484385, 1880221, 4029045, 5640663, 9401105, 28203315]

約数ペア:

[(1, 28203315), (3, 9401105), (5, 5640663), (7, 4029045), (15, 1880221), (19, 1484385), (21, 1343015), (35, 805809), (57, 494795), (67, 420945), (95, 296877), (105, 268603), (133, 212055), (201, 140315), (211, 133665), (285, 98959), (335, 84189), (399, 70685), (469, 60135), (633, 44555), (665, 42411), (1005, 28063), (1055, 26733), (1273, 22155), (1407, 20045), (1477, 19095), (1995, 14137), (2345, 12027), (3165, 8911), (3819, 7385), (4009, 7035), (4431, 6365)]