855855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 96

約数和(自身を含む): 2096640

約数和(自身を除く): 1240785

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 19, 21, 33, 35, 39, 45, 55, 57, 63, 65, 77, 91, 95, 99, 105, 117, 133, 143, 165, 171, 195, 209, 231, 247, 273, 285, 315, 385, 399, 429, 455, 495, 585, 627, 665, 693, 715, 741, 819, 855, 1001, 1045, 1155, 1197, 1235, 1287, 1365, 1463, 1729, 1881, 1995, 2145, 2223, 2717, 3003, 3135, 3465, 3705, 4095, 4389, 5005, 5187, 5985, 6435, 7315, 8151, 8645, 9009, 9405, 11115, 13167, 13585, 15015, 15561, 19019, 21945, 24453, 25935, 40755, 45045, 57057, 65835, 77805, 95095, 122265, 171171, 285285, 855855]

約数ペア:

[(1, 855855), (3, 285285), (5, 171171), (7, 122265), (9, 95095), (11, 77805), (13, 65835), (15, 57057), (19, 45045), (21, 40755), (33, 25935), (35, 24453), (39, 21945), (45, 19019), (55, 15561), (57, 15015), (63, 13585), (65, 13167), (77, 11115), (91, 9405), (95, 9009), (99, 8645), (105, 8151), (117, 7315), (133, 6435), (143, 5985), (165, 5187), (171, 5005), (195, 4389), (209, 4095), (231, 3705), (247, 3465), (273, 3135), (285, 3003), (315, 2717), (385, 2223), (399, 2145), (429, 1995), (455, 1881), (495, 1729), (585, 1463), (627, 1365), (665, 1287), (693, 1235), (715, 1197), (741, 1155), (819, 1045), (855, 1001)]