161920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:53

約数の個数: 64

約数和(自身を含む): 440640

約数和(自身を除く): 278720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 64, 80, 88, 92, 110, 115, 128, 160, 176, 184, 220, 230, 253, 320, 352, 368, 440, 460, 506, 640, 704, 736, 880, 920, 1012, 1265, 1408, 1472, 1760, 1840, 2024, 2530, 2944, 3520, 3680, 4048, 5060, 7040, 7360, 8096, 10120, 14720, 16192, 20240, 32384, 40480, 80960, 161920]

約数ペア:

[(1, 161920), (2, 80960), (4, 40480), (5, 32384), (8, 20240), (10, 16192), (11, 14720), (16, 10120), (20, 8096), (22, 7360), (23, 7040), (32, 5060), (40, 4048), (44, 3680), (46, 3520), (55, 2944), (64, 2530), (80, 2024), (88, 1840), (92, 1760), (110, 1472), (115, 1408), (128, 1265), (160, 1012), (176, 920), (184, 880), (220, 736), (230, 704), (253, 640), (320, 506), (352, 460), (368, 440)]