20488710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1321}}^1$

素因数の和:1389

約数の個数: 64

約数和(自身を含む): 54825984

約数和(自身を除く): 34337274

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 47, 55, 66, 94, 110, 141, 165, 235, 282, 330, 470, 517, 705, 1034, 1321, 1410, 1551, 2585, 2642, 3102, 3963, 5170, 6605, 7755, 7926, 13210, 14531, 15510, 19815, 29062, 39630, 43593, 62087, 72655, 87186, 124174, 145310, 186261, 217965, 310435, 372522, 435930, 620870, 682957, 931305, 1365914, 1862610, 2048871, 3414785, 4097742, 6829570, 10244355, 20488710]

約数ペア:

[(1, 20488710), (2, 10244355), (3, 6829570), (5, 4097742), (6, 3414785), (10, 2048871), (11, 1862610), (15, 1365914), (22, 931305), (30, 682957), (33, 620870), (47, 435930), (55, 372522), (66, 310435), (94, 217965), (110, 186261), (141, 145310), (165, 124174), (235, 87186), (282, 72655), (330, 62087), (470, 43593), (517, 39630), (705, 29062), (1034, 19815), (1321, 15510), (1410, 14531), (1551, 13210), (2585, 7926), (2642, 7755), (3102, 6605), (3963, 5170)]