19430515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 26925696

約数和(自身を除く): 7495181

約数列:

[1, 5, 13, 23, 41, 65, 115, 205, 299, 317, 533, 943, 1495, 1585, 2665, 4121, 4715, 7291, 12259, 12997, 20605, 36455, 61295, 64985, 94783, 168961, 298931, 473915, 844805, 1494655, 3886103, 19430515]

約数ペア:

[(1, 19430515), (5, 3886103), (13, 1494655), (23, 844805), (41, 473915), (65, 298931), (115, 168961), (205, 94783), (299, 64985), (317, 61295), (533, 36455), (943, 20605), (1495, 12997), (1585, 12259), (2665, 7291), (4121, 4715)]