18021760

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1019

約数の個数: 64

約数和(自身を含む): 44614800

約数和(自身を除く): 26593040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 971, 1160, 1856, 1942, 2320, 3712, 3884, 4640, 4855, 7768, 9280, 9710, 15536, 18560, 19420, 28159, 31072, 38840, 56318, 62144, 77680, 112636, 124288, 140795, 155360, 225272, 281590, 310720, 450544, 563180, 621440, 901088, 1126360, 1802176, 2252720, 3604352, 4505440, 9010880, 18021760]

約数ペア:

[(1, 18021760), (2, 9010880), (4, 4505440), (5, 3604352), (8, 2252720), (10, 1802176), (16, 1126360), (20, 901088), (29, 621440), (32, 563180), (40, 450544), (58, 310720), (64, 281590), (80, 225272), (116, 155360), (128, 140795), (145, 124288), (160, 112636), (232, 77680), (290, 62144), (320, 56318), (464, 38840), (580, 31072), (640, 28159), (928, 19420), (971, 18560), (1160, 15536), (1856, 9710), (1942, 9280), (2320, 7768), (3712, 4855), (3884, 4640)]