80894720

素因数分解:

$2^8\times 5^1\times {\mathrm{63199}}^1$

素因数の和:63220

約数の個数: 36

約数和(自身を含む): 193771200

約数和(自身を除く): 112876480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 63199, 126398, 252796, 315995, 505592, 631990, 1011184, 1263980, 2022368, 2527960, 4044736, 5055920, 8089472, 10111840, 16178944, 20223680, 40447360, 80894720]

約数ペア:

[(1, 80894720), (2, 40447360), (4, 20223680), (5, 16178944), (8, 10111840), (10, 8089472), (16, 5055920), (20, 4044736), (32, 2527960), (40, 2022368), (64, 1263980), (80, 1011184), (128, 631990), (160, 505592), (256, 315995), (320, 252796), (640, 126398), (1280, 63199)]