20328804

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 55429920

約数和(自身を除く): 35101116

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 59, 68, 102, 118, 153, 177, 204, 236, 306, 354, 531, 563, 612, 708, 1003, 1062, 1126, 1689, 2006, 2124, 2252, 3009, 3378, 4012, 5067, 6018, 6756, 9027, 9571, 10134, 12036, 18054, 19142, 20268, 28713, 33217, 36108, 38284, 57426, 66434, 86139, 99651, 114852, 132868, 172278, 199302, 298953, 344556, 398604, 564689, 597906, 1129378, 1195812, 1694067, 2258756, 3388134, 5082201, 6776268, 10164402, 20328804]

約数ペア:

[(1, 20328804), (2, 10164402), (3, 6776268), (4, 5082201), (6, 3388134), (9, 2258756), (12, 1694067), (17, 1195812), (18, 1129378), (34, 597906), (36, 564689), (51, 398604), (59, 344556), (68, 298953), (102, 199302), (118, 172278), (153, 132868), (177, 114852), (204, 99651), (236, 86139), (306, 66434), (354, 57426), (531, 38284), (563, 36108), (612, 33217), (708, 28713), (1003, 20268), (1062, 19142), (1126, 18054), (1689, 12036), (2006, 10134), (2124, 9571), (2252, 9027), (3009, 6756), (3378, 6018), (4012, 5067)]