1278165

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:106

約数の個数: 48

約数和(自身を含む): 2495232

約数和(自身を除く): 1217067

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 47, 49, 105, 111, 141, 147, 185, 235, 245, 259, 329, 555, 705, 735, 777, 987, 1295, 1645, 1739, 1813, 2303, 3885, 4935, 5217, 5439, 6909, 8695, 9065, 11515, 12173, 26085, 27195, 34545, 36519, 60865, 85211, 182595, 255633, 426055, 1278165]

約数ペア:

[(1, 1278165), (3, 426055), (5, 255633), (7, 182595), (15, 85211), (21, 60865), (35, 36519), (37, 34545), (47, 27195), (49, 26085), (105, 12173), (111, 11515), (141, 9065), (147, 8695), (185, 6909), (235, 5439), (245, 5217), (259, 4935), (329, 3885), (555, 2303), (705, 1813), (735, 1739), (777, 1645), (987, 1295)]