208353080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{400679}}^1$

素因数の和:400703

約数の個数: 32

約数和(自身を含む): 504856800

約数和(自身を除く): 296503720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 400679, 801358, 1602716, 2003395, 3205432, 4006790, 5208827, 8013580, 10417654, 16027160, 20835308, 26044135, 41670616, 52088270, 104176540, 208353080]

約数ペア:

[(1, 208353080), (2, 104176540), (4, 52088270), (5, 41670616), (8, 26044135), (10, 20835308), (13, 16027160), (20, 10417654), (26, 8013580), (40, 5208827), (52, 4006790), (65, 3205432), (104, 2003395), (130, 1602716), (260, 801358), (520, 400679)]