80345900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 183884064

約数和(自身を除く): 103538164

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 181, 193, 230, 362, 386, 460, 575, 724, 772, 905, 965, 1150, 1810, 1930, 2300, 3620, 3860, 4163, 4439, 4525, 4825, 8326, 8878, 9050, 9650, 16652, 17756, 18100, 19300, 20815, 22195, 34933, 41630, 44390, 69866, 83260, 88780, 104075, 110975, 139732, 174665, 208150, 221950, 349330, 416300, 443900, 698660, 803459, 873325, 1606918, 1746650, 3213836, 3493300, 4017295, 8034590, 16069180, 20086475, 40172950, 80345900]

約数ペア:

[(1, 80345900), (2, 40172950), (4, 20086475), (5, 16069180), (10, 8034590), (20, 4017295), (23, 3493300), (25, 3213836), (46, 1746650), (50, 1606918), (92, 873325), (100, 803459), (115, 698660), (181, 443900), (193, 416300), (230, 349330), (362, 221950), (386, 208150), (460, 174665), (575, 139732), (724, 110975), (772, 104075), (905, 88780), (965, 83260), (1150, 69866), (1810, 44390), (1930, 41630), (2300, 34933), (3620, 22195), (3860, 20815), (4163, 19300), (4439, 18100), (4525, 17756), (4825, 16652), (8326, 9650), (8878, 9050)]