20264860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13159}}^1$

素因数の和:13186

約数の個数: 48

約数和(自身を含む): 53061120

約数和(自身を除く): 32796260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13159, 26318, 52636, 65795, 92113, 131590, 144749, 184226, 263180, 289498, 368452, 460565, 578996, 723745, 921130, 1013243, 1447490, 1842260, 2026486, 2894980, 4052972, 5066215, 10132430, 20264860]

約数ペア:

[(1, 20264860), (2, 10132430), (4, 5066215), (5, 4052972), (7, 2894980), (10, 2026486), (11, 1842260), (14, 1447490), (20, 1013243), (22, 921130), (28, 723745), (35, 578996), (44, 460565), (55, 368452), (70, 289498), (77, 263180), (110, 184226), (140, 144749), (154, 131590), (220, 92113), (308, 65795), (385, 52636), (770, 26318), (1540, 13159)]