208762975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 292481280

約数和(自身を除く): 83718305

約数列:

[1, 5, 17, 19, 25, 85, 95, 103, 251, 323, 425, 475, 515, 1255, 1615, 1751, 1957, 2575, 4267, 4769, 6275, 8075, 8755, 9785, 21335, 23845, 25853, 33269, 43775, 48925, 81073, 106675, 119225, 129265, 166345, 405365, 439501, 491207, 646325, 831725, 2026825, 2197505, 2456035, 8350519, 10987525, 12280175, 41752595, 208762975]

約数ペア:

[(1, 208762975), (5, 41752595), (17, 12280175), (19, 10987525), (25, 8350519), (85, 2456035), (95, 2197505), (103, 2026825), (251, 831725), (323, 646325), (425, 491207), (475, 439501), (515, 405365), (1255, 166345), (1615, 129265), (1751, 119225), (1957, 106675), (2575, 81073), (4267, 48925), (4769, 43775), (6275, 33269), (8075, 25853), (8755, 23845), (9785, 21335)]