18151040

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 25912960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 359, 395, 632, 640, 718, 790, 1264, 1436, 1580, 1795, 2528, 2872, 3160, 3590, 5056, 5744, 6320, 7180, 10112, 11488, 12640, 14360, 22976, 25280, 28361, 28720, 45952, 50560, 56722, 57440, 113444, 114880, 141805, 226888, 229760, 283610, 453776, 567220, 907552, 1134440, 1815104, 2268880, 3630208, 4537760, 9075520, 18151040]

約数ペア:

[(1, 18151040), (2, 9075520), (4, 4537760), (5, 3630208), (8, 2268880), (10, 1815104), (16, 1134440), (20, 907552), (32, 567220), (40, 453776), (64, 283610), (79, 229760), (80, 226888), (128, 141805), (158, 114880), (160, 113444), (316, 57440), (320, 56722), (359, 50560), (395, 45952), (632, 28720), (640, 28361), (718, 25280), (790, 22976), (1264, 14360), (1436, 12640), (1580, 11488), (1795, 10112), (2528, 7180), (2872, 6320), (3160, 5744), (3590, 5056)]