8781400

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^2\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 21600180

約数和(自身を除く): 12818780

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 83, 92, 100, 115, 166, 184, 200, 230, 332, 415, 460, 529, 575, 664, 830, 920, 1058, 1150, 1660, 1909, 2075, 2116, 2300, 2645, 3320, 3818, 4150, 4232, 4600, 5290, 7636, 8300, 9545, 10580, 13225, 15272, 16600, 19090, 21160, 26450, 38180, 43907, 47725, 52900, 76360, 87814, 95450, 105800, 175628, 190900, 219535, 351256, 381800, 439070, 878140, 1097675, 1756280, 2195350, 4390700, 8781400]

約数ペア:

[(1, 8781400), (2, 4390700), (4, 2195350), (5, 1756280), (8, 1097675), (10, 878140), (20, 439070), (23, 381800), (25, 351256), (40, 219535), (46, 190900), (50, 175628), (83, 105800), (92, 95450), (100, 87814), (115, 76360), (166, 52900), (184, 47725), (200, 43907), (230, 38180), (332, 26450), (415, 21160), (460, 19090), (529, 16600), (575, 15272), (664, 13225), (830, 10580), (920, 9545), (1058, 8300), (1150, 7636), (1660, 5290), (1909, 4600), (2075, 4232), (2116, 4150), (2300, 3818), (2645, 3320)]