81389056

素因数分解:

$2^9\times 7^1\times {\mathrm{22709}}^1$

素因数の和:22734

約数の個数: 40

約数和(自身を含む): 185858640

約数和(自身を除く): 104469584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 22709, 45418, 90836, 158963, 181672, 317926, 363344, 635852, 726688, 1271704, 1453376, 2543408, 2906752, 5086816, 5813504, 10173632, 11627008, 20347264, 40694528, 81389056]

約数ペア:

[(1, 81389056), (2, 40694528), (4, 20347264), (7, 11627008), (8, 10173632), (14, 5813504), (16, 5086816), (28, 2906752), (32, 2543408), (56, 1453376), (64, 1271704), (112, 726688), (128, 635852), (224, 363344), (256, 317926), (448, 181672), (512, 158963), (896, 90836), (1792, 45418), (3584, 22709)]