1821985640

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{122117}}^1$

素因数の和:122501

約数の個数: 32

約数和(自身を含む): 4110491880

約数和(自身を除く): 2288506240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2984, 3730, 7460, 14920, 122117, 244234, 488468, 610585, 976936, 1221170, 2442340, 4884680, 45549641, 91099282, 182198564, 227748205, 364397128, 455496410, 910992820, 1821985640]

約数ペア:

[(1, 1821985640), (2, 910992820), (4, 455496410), (5, 364397128), (8, 227748205), (10, 182198564), (20, 91099282), (40, 45549641), (373, 4884680), (746, 2442340), (1492, 1221170), (1865, 976936), (2984, 610585), (3730, 488468), (7460, 244234), (14920, 122117)]