19951120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1592

約数の個数: 80

約数和(自身を含む): 55353600

約数和(自身を除く): 35402480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1549, 1610, 1840, 2576, 3098, 3220, 6196, 6440, 7745, 10843, 12392, 12880, 15490, 21686, 24784, 30980, 35627, 43372, 54215, 61960, 71254, 86744, 108430, 123920, 142508, 173488, 178135, 216860, 249389, 285016, 356270, 433720, 498778, 570032, 712540, 867440, 997556, 1246945, 1425080, 1995112, 2493890, 2850160, 3990224, 4987780, 9975560, 19951120]

約数ペア:

[(1, 19951120), (2, 9975560), (4, 4987780), (5, 3990224), (7, 2850160), (8, 2493890), (10, 1995112), (14, 1425080), (16, 1246945), (20, 997556), (23, 867440), (28, 712540), (35, 570032), (40, 498778), (46, 433720), (56, 356270), (70, 285016), (80, 249389), (92, 216860), (112, 178135), (115, 173488), (140, 142508), (161, 123920), (184, 108430), (230, 86744), (280, 71254), (322, 61960), (368, 54215), (460, 43372), (560, 35627), (644, 30980), (805, 24784), (920, 21686), (1288, 15490), (1549, 12880), (1610, 12392), (1840, 10843), (2576, 7745), (3098, 6440), (3220, 6196)]