20346960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5020

約数の個数: 80

約数和(自身を含む): 66799296

約数和(自身を除く): 46452336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 4987, 9974, 14961, 19948, 24935, 29922, 39896, 49870, 59844, 74805, 79792, 84779, 99740, 119688, 149610, 169558, 199480, 239376, 254337, 299220, 339116, 398960, 423895, 508674, 598440, 678232, 847790, 1017348, 1196880, 1271685, 1356464, 1695580, 2034696, 2543370, 3391160, 4069392, 5086740, 6782320, 10173480, 20346960]

約数ペア:

[(1, 20346960), (2, 10173480), (3, 6782320), (4, 5086740), (5, 4069392), (6, 3391160), (8, 2543370), (10, 2034696), (12, 1695580), (15, 1356464), (16, 1271685), (17, 1196880), (20, 1017348), (24, 847790), (30, 678232), (34, 598440), (40, 508674), (48, 423895), (51, 398960), (60, 339116), (68, 299220), (80, 254337), (85, 239376), (102, 199480), (120, 169558), (136, 149610), (170, 119688), (204, 99740), (240, 84779), (255, 79792), (272, 74805), (340, 59844), (408, 49870), (510, 39896), (680, 29922), (816, 24935), (1020, 19948), (1360, 14961), (2040, 9974), (4080, 4987)]