28053025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 21943775

約数列:

[1, 5, 7, 11, 13, 19, 25, 35, 55, 59, 65, 77, 91, 95, 133, 143, 175, 209, 247, 275, 295, 325, 385, 413, 455, 475, 649, 665, 715, 767, 1001, 1045, 1121, 1235, 1463, 1475, 1729, 1925, 2065, 2275, 2717, 3245, 3325, 3575, 3835, 4543, 5005, 5225, 5369, 5605, 6175, 7315, 7847, 8437, 8645, 10325, 12331, 13585, 14573, 16225, 19019, 19175, 22715, 25025, 26845, 28025, 36575, 39235, 42185, 43225, 59059, 61655, 67925, 72865, 86317, 95095, 102011, 113575, 134225, 160303, 196175, 210925, 295295, 308275, 364325, 431585, 475475, 510055, 801515, 1122121, 1476475, 2157925, 2550275, 4007575, 5610605, 28053025]

約数ペア:

[(1, 28053025), (5, 5610605), (7, 4007575), (11, 2550275), (13, 2157925), (19, 1476475), (25, 1122121), (35, 801515), (55, 510055), (59, 475475), (65, 431585), (77, 364325), (91, 308275), (95, 295295), (133, 210925), (143, 196175), (175, 160303), (209, 134225), (247, 113575), (275, 102011), (295, 95095), (325, 86317), (385, 72865), (413, 67925), (455, 61655), (475, 59059), (649, 43225), (665, 42185), (715, 39235), (767, 36575), (1001, 28025), (1045, 26845), (1121, 25025), (1235, 22715), (1463, 19175), (1475, 19019), (1729, 16225), (1925, 14573), (2065, 13585), (2275, 12331), (2717, 10325), (3245, 8645), (3325, 8437), (3575, 7847), (3835, 7315), (4543, 6175), (5005, 5605), (5225, 5369)]