68905515

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 129111840

約数和(自身を除く): 60206325

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 241, 245, 389, 723, 735, 1167, 1205, 1687, 1945, 2723, 3615, 5061, 5835, 8169, 8435, 11809, 13615, 19061, 25305, 35427, 40845, 57183, 59045, 93749, 95305, 177135, 281247, 285915, 468745, 656243, 1406235, 1968729, 3281215, 4593701, 9843645, 13781103, 22968505, 68905515]

約数ペア:

[(1, 68905515), (3, 22968505), (5, 13781103), (7, 9843645), (15, 4593701), (21, 3281215), (35, 1968729), (49, 1406235), (105, 656243), (147, 468745), (241, 285915), (245, 281247), (389, 177135), (723, 95305), (735, 93749), (1167, 59045), (1205, 57183), (1687, 40845), (1945, 35427), (2723, 25305), (3615, 19061), (5061, 13615), (5835, 11809), (8169, 8435)]