20204480

素因数分解:

$2^6\times 5^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:733

約数の個数: 56

約数和(自身を含む): 48658272

約数和(自身を除く): 28453792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 160, 206, 320, 412, 515, 613, 824, 1030, 1226, 1648, 2060, 2452, 3065, 3296, 4120, 4904, 6130, 6592, 8240, 9808, 12260, 16480, 19616, 24520, 32960, 39232, 49040, 63139, 98080, 126278, 196160, 252556, 315695, 505112, 631390, 1010224, 1262780, 2020448, 2525560, 4040896, 5051120, 10102240, 20204480]

約数ペア:

[(1, 20204480), (2, 10102240), (4, 5051120), (5, 4040896), (8, 2525560), (10, 2020448), (16, 1262780), (20, 1010224), (32, 631390), (40, 505112), (64, 315695), (80, 252556), (103, 196160), (160, 126278), (206, 98080), (320, 63139), (412, 49040), (515, 39232), (613, 32960), (824, 24520), (1030, 19616), (1226, 16480), (1648, 12260), (2060, 9808), (2452, 8240), (3065, 6592), (3296, 6130), (4120, 4904)]