18406155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 34214400

約数和(自身を除く): 15808245

約数列:

[1, 3, 5, 15, 17, 19, 29, 51, 57, 85, 87, 95, 131, 145, 255, 285, 323, 393, 435, 493, 551, 655, 969, 1479, 1615, 1653, 1965, 2227, 2465, 2489, 2755, 3799, 4845, 6681, 7395, 7467, 8265, 9367, 11135, 11397, 12445, 18995, 28101, 33405, 37335, 42313, 46835, 56985, 64583, 72181, 126939, 140505, 193749, 211565, 216543, 322915, 360905, 634695, 968745, 1082715, 1227077, 3681231, 6135385, 18406155]

約数ペア:

[(1, 18406155), (3, 6135385), (5, 3681231), (15, 1227077), (17, 1082715), (19, 968745), (29, 634695), (51, 360905), (57, 322915), (85, 216543), (87, 211565), (95, 193749), (131, 140505), (145, 126939), (255, 72181), (285, 64583), (323, 56985), (393, 46835), (435, 42313), (493, 37335), (551, 33405), (655, 28101), (969, 18995), (1479, 12445), (1615, 11397), (1653, 11135), (1965, 9367), (2227, 8265), (2465, 7467), (2489, 7395), (2755, 6681), (3799, 4845)]