81934720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18289}}^1$

素因数の和:18315

約数の個数: 64

約数和(自身を含む): 223869600

約数和(自身を除く): 141934880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18289, 36578, 73156, 91445, 128023, 146312, 182890, 256046, 292624, 365780, 512092, 585248, 640115, 731560, 1024184, 1170496, 1280230, 1463120, 2048368, 2340992, 2560460, 2926240, 4096736, 5120920, 5852480, 8193472, 10241840, 11704960, 16386944, 20483680, 40967360, 81934720]

約数ペア:

[(1, 81934720), (2, 40967360), (4, 20483680), (5, 16386944), (7, 11704960), (8, 10241840), (10, 8193472), (14, 5852480), (16, 5120920), (20, 4096736), (28, 2926240), (32, 2560460), (35, 2340992), (40, 2048368), (56, 1463120), (64, 1280230), (70, 1170496), (80, 1024184), (112, 731560), (128, 640115), (140, 585248), (160, 512092), (224, 365780), (280, 292624), (320, 256046), (448, 182890), (560, 146312), (640, 128023), (896, 91445), (1120, 73156), (2240, 36578), (4480, 18289)]