20489904

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7489}}^1$

素因数の和:7522

約数の個数: 60

約数和(自身を含む): 60369400

約数和(自身を除く): 39879496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7489, 14978, 22467, 29956, 44934, 59912, 67401, 89868, 119824, 134802, 142291, 179736, 269604, 284582, 359472, 426873, 539208, 569164, 853746, 1078416, 1138328, 1280619, 1707492, 2276656, 2561238, 3414984, 5122476, 6829968, 10244952, 20489904]

約数ペア:

[(1, 20489904), (2, 10244952), (3, 6829968), (4, 5122476), (6, 3414984), (8, 2561238), (9, 2276656), (12, 1707492), (16, 1280619), (18, 1138328), (19, 1078416), (24, 853746), (36, 569164), (38, 539208), (48, 426873), (57, 359472), (72, 284582), (76, 269604), (114, 179736), (144, 142291), (152, 134802), (171, 119824), (228, 89868), (304, 67401), (342, 59912), (456, 44934), (684, 29956), (912, 22467), (1368, 14978), (2736, 7489)]