209723980

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{34157}}^1$

素因数の和:34473

約数の個数: 24

約数和(自身を含む): 441867888

約数和(自身を除く): 232143908

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 34157, 68314, 136628, 170785, 341570, 683140, 10486199, 20972398, 41944796, 52430995, 104861990, 209723980]

約数ペア:

[(1, 209723980), (2, 104861990), (4, 52430995), (5, 41944796), (10, 20972398), (20, 10486199), (307, 683140), (614, 341570), (1228, 170785), (1535, 136628), (3070, 68314), (6140, 34157)]