252980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 658560

約数和(自身を除く): 405580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 139, 140, 182, 260, 278, 364, 455, 556, 695, 910, 973, 1390, 1807, 1820, 1946, 2780, 3614, 3892, 4865, 7228, 9035, 9730, 12649, 18070, 19460, 25298, 36140, 50596, 63245, 126490, 252980]

約数ペア:

[(1, 252980), (2, 126490), (4, 63245), (5, 50596), (7, 36140), (10, 25298), (13, 19460), (14, 18070), (20, 12649), (26, 9730), (28, 9035), (35, 7228), (52, 4865), (65, 3892), (70, 3614), (91, 2780), (130, 1946), (139, 1820), (140, 1807), (182, 1390), (260, 973), (278, 910), (364, 695), (455, 556)]