420051940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{272761}}^1$

素因数の和:272788

約数の個数: 48

約数和(自身を含む): 1099776384

約数和(自身を除く): 679724444

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 272761, 545522, 1091044, 1363805, 1909327, 2727610, 3000371, 3818654, 5455220, 6000742, 7637308, 9546635, 12001484, 15001855, 19093270, 21002597, 30003710, 38186540, 42005194, 60007420, 84010388, 105012985, 210025970, 420051940]

約数ペア:

[(1, 420051940), (2, 210025970), (4, 105012985), (5, 84010388), (7, 60007420), (10, 42005194), (11, 38186540), (14, 30003710), (20, 21002597), (22, 19093270), (28, 15001855), (35, 12001484), (44, 9546635), (55, 7637308), (70, 6000742), (77, 5455220), (110, 3818654), (140, 3000371), (154, 2727610), (220, 1909327), (308, 1363805), (385, 1091044), (770, 545522), (1540, 272761)]