16814920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10253}}^1$

素因数の和:10305

約数の個数: 32

約数和(自身を含む): 38760120

約数和(自身を除く): 21945200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10253, 20506, 41012, 51265, 82024, 102530, 205060, 410120, 420373, 840746, 1681492, 2101865, 3362984, 4203730, 8407460, 16814920]

約数ペア:

[(1, 16814920), (2, 8407460), (4, 4203730), (5, 3362984), (8, 2101865), (10, 1681492), (20, 840746), (40, 420373), (41, 410120), (82, 205060), (164, 102530), (205, 82024), (328, 51265), (410, 41012), (820, 20506), (1640, 10253)]