399161035

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{21397}}^1$

素因数の和:21463

約数の個数: 32

約数和(自身を含む): 603937152

約数和(自身を除く): 204776117

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 205, 287, 455, 533, 1435, 2665, 3731, 18655, 21397, 106985, 149779, 278161, 748895, 877277, 1390805, 1947127, 4386385, 6140939, 9735635, 11404601, 30704695, 57023005, 79832207, 399161035]

約数ペア:

[(1, 399161035), (5, 79832207), (7, 57023005), (13, 30704695), (35, 11404601), (41, 9735635), (65, 6140939), (91, 4386385), (205, 1947127), (287, 1390805), (455, 877277), (533, 748895), (1435, 278161), (2665, 149779), (3731, 106985), (18655, 21397)]