20381330368

素因数分解:

$2^6\times 7^1\times {\mathrm{89}}^1\times {\mathrm{511169}}^1$

素因数の和:511277

約数の個数: 56

約数和(自身を含む): 46741384800

約数和(自身を除く): 26360054432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 178, 224, 356, 448, 623, 712, 1246, 1424, 2492, 2848, 4984, 5696, 9968, 19936, 39872, 511169, 1022338, 2044676, 3578183, 4089352, 7156366, 8178704, 14312732, 16357408, 28625464, 32714816, 45494041, 57250928, 90988082, 114501856, 181976164, 229003712, 318458287, 363952328, 636916574, 727904656, 1273833148, 1455809312, 2547666296, 2911618624, 5095332592, 10190665184, 20381330368]

約数ペア:

[(1, 20381330368), (2, 10190665184), (4, 5095332592), (7, 2911618624), (8, 2547666296), (14, 1455809312), (16, 1273833148), (28, 727904656), (32, 636916574), (56, 363952328), (64, 318458287), (89, 229003712), (112, 181976164), (178, 114501856), (224, 90988082), (356, 57250928), (448, 45494041), (623, 32714816), (712, 28625464), (1246, 16357408), (1424, 14312732), (2492, 8178704), (2848, 7156366), (4984, 4089352), (5696, 3578183), (9968, 2044676), (19936, 1022338), (39872, 511169)]