20415690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11939}}^1$

素因数の和:11971

約数の個数: 48

約数和(自身を含む): 55879200

約数和(自身を除く): 35463510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 11939, 23878, 35817, 59695, 71634, 107451, 119390, 179085, 214902, 226841, 358170, 453682, 537255, 680523, 1074510, 1134205, 1361046, 2041569, 2268410, 3402615, 4083138, 6805230, 10207845, 20415690]

約数ペア:

[(1, 20415690), (2, 10207845), (3, 6805230), (5, 4083138), (6, 3402615), (9, 2268410), (10, 2041569), (15, 1361046), (18, 1134205), (19, 1074510), (30, 680523), (38, 537255), (45, 453682), (57, 358170), (90, 226841), (95, 214902), (114, 179085), (171, 119390), (190, 107451), (285, 71634), (342, 59695), (570, 35817), (855, 23878), (1710, 11939)]