20654929280

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1898431}}^1$

素因数の和:1898467

約数の個数: 64

約数和(自身を含む): 52282817280

約数和(自身を除く): 31627888000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 1898431, 3796862, 7593724, 9492155, 15187448, 18984310, 30374896, 32273327, 37968620, 60749792, 64546654, 75937240, 121499584, 129093308, 151874480, 161366635, 242999168, 258186616, 303748960, 322733270, 516373232, 607497920, 645466540, 1032746464, 1214995840, 1290933080, 2065492928, 2581866160, 4130985856, 5163732320, 10327464640, 20654929280]

約数ペア:

[(1, 20654929280), (2, 10327464640), (4, 5163732320), (5, 4130985856), (8, 2581866160), (10, 2065492928), (16, 1290933080), (17, 1214995840), (20, 1032746464), (32, 645466540), (34, 607497920), (40, 516373232), (64, 322733270), (68, 303748960), (80, 258186616), (85, 242999168), (128, 161366635), (136, 151874480), (160, 129093308), (170, 121499584), (272, 75937240), (320, 64546654), (340, 60749792), (544, 37968620), (640, 32273327), (680, 30374896), (1088, 18984310), (1360, 15187448), (2176, 9492155), (2720, 7593724), (5440, 3796862), (10880, 1898431)]