16402220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 36324288

約数和(自身を除く): 19922068

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 181, 197, 230, 362, 394, 460, 724, 788, 905, 985, 1810, 1970, 3620, 3940, 4163, 4531, 8326, 9062, 16652, 18124, 20815, 22655, 35657, 41630, 45310, 71314, 83260, 90620, 142628, 178285, 356570, 713140, 820111, 1640222, 3280444, 4100555, 8201110, 16402220]

約数ペア:

[(1, 16402220), (2, 8201110), (4, 4100555), (5, 3280444), (10, 1640222), (20, 820111), (23, 713140), (46, 356570), (92, 178285), (115, 142628), (181, 90620), (197, 83260), (230, 71314), (362, 45310), (394, 41630), (460, 35657), (724, 22655), (788, 20815), (905, 18124), (985, 16652), (1810, 9062), (1970, 8326), (3620, 4531), (3940, 4163)]