8201680

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 19219752

約数和(自身を除く): 11018072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 653, 785, 1256, 1306, 1570, 2512, 2612, 3140, 3265, 5224, 6280, 6530, 10448, 12560, 13060, 26120, 52240, 102521, 205042, 410084, 512605, 820168, 1025210, 1640336, 2050420, 4100840, 8201680]

約数ペア:

[(1, 8201680), (2, 4100840), (4, 2050420), (5, 1640336), (8, 1025210), (10, 820168), (16, 512605), (20, 410084), (40, 205042), (80, 102521), (157, 52240), (314, 26120), (628, 13060), (653, 12560), (785, 10448), (1256, 6530), (1306, 6280), (1570, 5224), (2512, 3265), (2612, 3140)]