20568256

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 56

約数和(自身を含む): 43342560

約数和(自身を除く): 22774304

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 89, 92, 157, 178, 184, 314, 356, 368, 628, 712, 736, 1256, 1424, 1472, 2047, 2512, 2848, 3611, 4094, 5024, 5696, 7222, 8188, 10048, 13973, 14444, 16376, 27946, 28888, 32752, 55892, 57776, 65504, 111784, 115552, 131008, 223568, 231104, 321379, 447136, 642758, 894272, 1285516, 2571032, 5142064, 10284128, 20568256]

約数ペア:

[(1, 20568256), (2, 10284128), (4, 5142064), (8, 2571032), (16, 1285516), (23, 894272), (32, 642758), (46, 447136), (64, 321379), (89, 231104), (92, 223568), (157, 131008), (178, 115552), (184, 111784), (314, 65504), (356, 57776), (368, 55892), (628, 32752), (712, 28888), (736, 27946), (1256, 16376), (1424, 14444), (1472, 13973), (2047, 10048), (2512, 8188), (2848, 7222), (3611, 5696), (4094, 5024)]