20157568

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 23025152

約数列:

[1, 2, 4, 8, 16, 23, 32, 41, 46, 64, 82, 92, 128, 164, 167, 184, 328, 334, 368, 656, 668, 736, 943, 1312, 1336, 1472, 1886, 2624, 2672, 2944, 3772, 3841, 5248, 5344, 6847, 7544, 7682, 10688, 13694, 15088, 15364, 21376, 27388, 30176, 30728, 54776, 60352, 61456, 109552, 120704, 122912, 157481, 219104, 245824, 314962, 438208, 491648, 629924, 876416, 1259848, 2519696, 5039392, 10078784, 20157568]

約数ペア:

[(1, 20157568), (2, 10078784), (4, 5039392), (8, 2519696), (16, 1259848), (23, 876416), (32, 629924), (41, 491648), (46, 438208), (64, 314962), (82, 245824), (92, 219104), (128, 157481), (164, 122912), (167, 120704), (184, 109552), (328, 61456), (334, 60352), (368, 54776), (656, 30728), (668, 30176), (736, 27388), (943, 21376), (1312, 15364), (1336, 15088), (1472, 13694), (1886, 10688), (2624, 7682), (2672, 7544), (2944, 6847), (3772, 5344), (3841, 5248)]