20893730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 25675870

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 715, 769, 1045, 1235, 1430, 1538, 2090, 2470, 2717, 3845, 5434, 7690, 8459, 9997, 13585, 14611, 16918, 19994, 27170, 29222, 42295, 49985, 73055, 84590, 99970, 109967, 146110, 160721, 189943, 219934, 321442, 379886, 549835, 803605, 949715, 1099670, 1607210, 1899430, 2089373, 4178746, 10446865, 20893730]

約数ペア:

[(1, 20893730), (2, 10446865), (5, 4178746), (10, 2089373), (11, 1899430), (13, 1607210), (19, 1099670), (22, 949715), (26, 803605), (38, 549835), (55, 379886), (65, 321442), (95, 219934), (110, 189943), (130, 160721), (143, 146110), (190, 109967), (209, 99970), (247, 84590), (286, 73055), (418, 49985), (494, 42295), (715, 29222), (769, 27170), (1045, 19994), (1235, 16918), (1430, 14611), (1538, 13585), (2090, 9997), (2470, 8459), (2717, 7690), (3845, 5434)]