642668416

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{386219}}^1$

素因数の和:386246

約数の個数: 32

約数和(自身を含む): 1378805400

約数和(自身を除く): 736136984

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 386219, 772438, 1544876, 3089752, 5020847, 6179504, 10041694, 12359008, 20083388, 24718016, 40166776, 49436032, 80333552, 160667104, 321334208, 642668416]

約数ペア:

[(1, 642668416), (2, 321334208), (4, 160667104), (8, 80333552), (13, 49436032), (16, 40166776), (26, 24718016), (32, 20083388), (52, 12359008), (64, 10041694), (104, 6179504), (128, 5020847), (208, 3089752), (416, 1544876), (832, 772438), (1664, 386219)]