19901504

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1433}}^1$

素因数の和:1483

約数の個数: 56

約数和(自身を含む): 46622208

約数和(自身を除く): 26720704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1433, 1736, 1984, 2866, 3472, 5732, 6944, 10031, 11464, 13888, 20062, 22928, 40124, 44423, 45856, 80248, 88846, 91712, 160496, 177692, 310961, 320992, 355384, 621922, 641984, 710768, 1243844, 1421536, 2487688, 2843072, 4975376, 9950752, 19901504]

約数ペア:

[(1, 19901504), (2, 9950752), (4, 4975376), (7, 2843072), (8, 2487688), (14, 1421536), (16, 1243844), (28, 710768), (31, 641984), (32, 621922), (56, 355384), (62, 320992), (64, 310961), (112, 177692), (124, 160496), (217, 91712), (224, 88846), (248, 80248), (434, 45856), (448, 44423), (496, 40124), (868, 22928), (992, 20062), (1433, 13888), (1736, 11464), (1984, 10031), (2866, 6944), (3472, 5732)]