20215115280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{652943}}^1$

素因数の和:653005

約数の個数: 120

約数和(自身を含む): 69468018048

約数和(自身を除く): 49252902768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 30960, 652943, 1305886, 1958829, 2611772, 3264715, 3917658, 5223544, 5876487, 6529430, 7835316, 9794145, 10447088, 11752974, 13058860, 15670632, 19588290, 23505948, 26117720, 28076549, 29382435, 31341264, 39176580, 47011896, 52235440, 56153098, 58764870, 78353160, 84229647, 94023792, 112306196, 117529740, 140382745, 156706320, 168459294, 224612392, 235059480, 252688941, 280765490, 336918588, 421148235, 449224784, 470118960, 505377882, 561530980, 673837176, 842296470, 1010755764, 1123061960, 1263444705, 1347674352, 1684592940, 2021511528, 2246123920, 2526889410, 3369185880, 4043023056, 5053778820, 6738371760, 10107557640, 20215115280]

約数ペア:

[(1, 20215115280), (2, 10107557640), (3, 6738371760), (4, 5053778820), (5, 4043023056), (6, 3369185880), (8, 2526889410), (9, 2246123920), (10, 2021511528), (12, 1684592940), (15, 1347674352), (16, 1263444705), (18, 1123061960), (20, 1010755764), (24, 842296470), (30, 673837176), (36, 561530980), (40, 505377882), (43, 470118960), (45, 449224784), (48, 421148235), (60, 336918588), (72, 280765490), (80, 252688941), (86, 235059480), (90, 224612392), (120, 168459294), (129, 156706320), (144, 140382745), (172, 117529740), (180, 112306196), (215, 94023792), (240, 84229647), (258, 78353160), (344, 58764870), (360, 56153098), (387, 52235440), (430, 47011896), (516, 39176580), (645, 31341264), (688, 29382435), (720, 28076549), (774, 26117720), (860, 23505948), (1032, 19588290), (1290, 15670632), (1548, 13058860), (1720, 11752974), (1935, 10447088), (2064, 9794145), (2580, 7835316), (3096, 6529430), (3440, 5876487), (3870, 5223544), (5160, 3917658), (6192, 3264715), (7740, 2611772), (10320, 1958829), (15480, 1305886), (30960, 652943)]