161971732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2416

約数の個数: 48

約数和(自身を含む): 325987200

約数和(自身を除く): 164015468

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 71, 76, 142, 247, 284, 494, 923, 988, 1349, 1846, 2309, 2698, 3692, 4618, 5396, 9236, 17537, 30017, 35074, 43871, 60034, 70148, 87742, 120068, 163939, 175484, 327878, 570323, 655756, 1140646, 2131207, 2281292, 3114841, 4262414, 6229682, 8524828, 12459364, 40492933, 80985866, 161971732]

約数ペア:

[(1, 161971732), (2, 80985866), (4, 40492933), (13, 12459364), (19, 8524828), (26, 6229682), (38, 4262414), (52, 3114841), (71, 2281292), (76, 2131207), (142, 1140646), (247, 655756), (284, 570323), (494, 327878), (923, 175484), (988, 163939), (1349, 120068), (1846, 87742), (2309, 70148), (2698, 60034), (3692, 43871), (4618, 35074), (5396, 30017), (9236, 17537)]