20437504

素因数分解:

$2^9\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:420

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20809856

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 179, 223, 256, 358, 446, 512, 716, 892, 1432, 1784, 2864, 3568, 5728, 7136, 11456, 14272, 22912, 28544, 39917, 45824, 57088, 79834, 91648, 114176, 159668, 319336, 638672, 1277344, 2554688, 5109376, 10218752, 20437504]

約数ペア:

[(1, 20437504), (2, 10218752), (4, 5109376), (8, 2554688), (16, 1277344), (32, 638672), (64, 319336), (128, 159668), (179, 114176), (223, 91648), (256, 79834), (358, 57088), (446, 45824), (512, 39917), (716, 28544), (892, 22912), (1432, 14272), (1784, 11456), (2864, 7136), (3568, 5728)]