16520720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7121}}^1$

素因数の和:7163

約数の個数: 40

約数和(自身を含む): 39740760

約数和(自身を除く): 23220040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 7121, 14242, 28484, 35605, 56968, 71210, 113936, 142420, 206509, 284840, 413018, 569680, 826036, 1032545, 1652072, 2065090, 3304144, 4130180, 8260360, 16520720]

約数ペア:

[(1, 16520720), (2, 8260360), (4, 4130180), (5, 3304144), (8, 2065090), (10, 1652072), (16, 1032545), (20, 826036), (29, 569680), (40, 413018), (58, 284840), (80, 206509), (116, 142420), (145, 113936), (232, 71210), (290, 56968), (464, 35605), (580, 28484), (1160, 14242), (2320, 7121)]