197505

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:51

約数の個数: 64

約数和(自身を含む): 460800

約数和(自身を除く): 263295

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 27, 33, 35, 45, 55, 57, 63, 77, 95, 99, 105, 133, 135, 165, 171, 189, 209, 231, 285, 297, 315, 385, 399, 495, 513, 627, 665, 693, 855, 945, 1045, 1155, 1197, 1463, 1485, 1881, 1995, 2079, 2565, 3135, 3465, 3591, 4389, 5643, 5985, 7315, 9405, 10395, 13167, 17955, 21945, 28215, 39501, 65835, 197505]

約数ペア:

[(1, 197505), (3, 65835), (5, 39501), (7, 28215), (9, 21945), (11, 17955), (15, 13167), (19, 10395), (21, 9405), (27, 7315), (33, 5985), (35, 5643), (45, 4389), (55, 3591), (57, 3465), (63, 3135), (77, 2565), (95, 2079), (99, 1995), (105, 1881), (133, 1485), (135, 1463), (165, 1197), (171, 1155), (189, 1045), (209, 945), (231, 855), (285, 693), (297, 665), (315, 627), (385, 513), (399, 495)]