644920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{701}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 1516320

約数和(自身を除く): 871400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 701, 920, 1402, 2804, 3505, 5608, 7010, 14020, 16123, 28040, 32246, 64492, 80615, 128984, 161230, 322460, 644920]

約数ペア:

[(1, 644920), (2, 322460), (4, 161230), (5, 128984), (8, 80615), (10, 64492), (20, 32246), (23, 28040), (40, 16123), (46, 14020), (92, 7010), (115, 5608), (184, 3505), (230, 2804), (460, 1402), (701, 920)]