38380905

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 34609815

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 115, 135, 141, 207, 235, 263, 345, 423, 621, 705, 789, 1035, 1081, 1269, 1315, 2115, 2367, 3105, 3243, 3945, 5405, 6049, 6345, 7101, 9729, 11835, 12361, 16215, 18147, 29187, 30245, 35505, 37083, 48645, 54441, 61805, 90735, 111249, 145935, 163323, 185415, 272205, 284303, 333747, 556245, 816615, 852909, 1421515, 1668735, 2558727, 4264545, 7676181, 12793635, 38380905]

約数ペア:

[(1, 38380905), (3, 12793635), (5, 7676181), (9, 4264545), (15, 2558727), (23, 1668735), (27, 1421515), (45, 852909), (47, 816615), (69, 556245), (115, 333747), (135, 284303), (141, 272205), (207, 185415), (235, 163323), (263, 145935), (345, 111249), (423, 90735), (621, 61805), (705, 54441), (789, 48645), (1035, 37083), (1081, 35505), (1269, 30245), (1315, 29187), (2115, 18147), (2367, 16215), (3105, 12361), (3243, 11835), (3945, 9729), (5405, 7101), (6049, 6345)]