199981180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23417}}^1$

素因数の和:23494

約数の個数: 48

約数和(自身を含む): 487843776

約数和(自身を除く): 287862596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 23417, 46834, 93668, 117085, 163919, 234170, 327838, 468340, 655676, 819595, 1428437, 1639190, 2856874, 3278380, 5713748, 7142185, 9999059, 14284370, 19998118, 28568740, 39996236, 49995295, 99990590, 199981180]

約数ペア:

[(1, 199981180), (2, 99990590), (4, 49995295), (5, 39996236), (7, 28568740), (10, 19998118), (14, 14284370), (20, 9999059), (28, 7142185), (35, 5713748), (61, 3278380), (70, 2856874), (122, 1639190), (140, 1428437), (244, 819595), (305, 655676), (427, 468340), (610, 327838), (854, 234170), (1220, 163919), (1708, 117085), (2135, 93668), (4270, 46834), (8540, 23417)]