1420580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 3480960

約数和(自身を除く): 2060380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 139, 140, 146, 278, 292, 365, 511, 556, 695, 730, 973, 1022, 1390, 1460, 1946, 2044, 2555, 2780, 3892, 4865, 5110, 9730, 10147, 10220, 19460, 20294, 40588, 50735, 71029, 101470, 142058, 202940, 284116, 355145, 710290, 1420580]

約数ペア:

[(1, 1420580), (2, 710290), (4, 355145), (5, 284116), (7, 202940), (10, 142058), (14, 101470), (20, 71029), (28, 50735), (35, 40588), (70, 20294), (73, 19460), (139, 10220), (140, 10147), (146, 9730), (278, 5110), (292, 4865), (365, 3892), (511, 2780), (556, 2555), (695, 2044), (730, 1946), (973, 1460), (1022, 1390)]