285942460

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1630

約数の個数: 48

約数和(自身を含む): 613519200

約数和(自身を除く): 327576740

約数列:

[1, 2, 4, 5, 10, 20, 73, 139, 146, 278, 292, 365, 556, 695, 730, 1390, 1409, 1460, 2780, 2818, 5636, 7045, 10147, 14090, 20294, 28180, 40588, 50735, 101470, 102857, 195851, 202940, 205714, 391702, 411428, 514285, 783404, 979255, 1028570, 1958510, 2057140, 3917020, 14297123, 28594246, 57188492, 71485615, 142971230, 285942460]

約数ペア:

[(1, 285942460), (2, 142971230), (4, 71485615), (5, 57188492), (10, 28594246), (20, 14297123), (73, 3917020), (139, 2057140), (146, 1958510), (278, 1028570), (292, 979255), (365, 783404), (556, 514285), (695, 411428), (730, 391702), (1390, 205714), (1409, 202940), (1460, 195851), (2780, 102857), (2818, 101470), (5636, 50735), (7045, 40588), (10147, 28180), (14090, 20294)]