201647660

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 430012800

約数和(自身を除く): 228365140

約数列:

[1, 2, 4, 5, 10, 20, 149, 157, 298, 314, 431, 596, 628, 745, 785, 862, 1490, 1570, 1724, 2155, 2980, 3140, 4310, 8620, 23393, 46786, 64219, 67667, 93572, 116965, 128438, 135334, 233930, 256876, 270668, 321095, 338335, 467860, 642190, 676670, 1284380, 1353340, 10082383, 20164766, 40329532, 50411915, 100823830, 201647660]

約数ペア:

[(1, 201647660), (2, 100823830), (4, 50411915), (5, 40329532), (10, 20164766), (20, 10082383), (149, 1353340), (157, 1284380), (298, 676670), (314, 642190), (431, 467860), (596, 338335), (628, 321095), (745, 270668), (785, 256876), (862, 233930), (1490, 135334), (1570, 128438), (1724, 116965), (2155, 93572), (2980, 67667), (3140, 64219), (4310, 46786), (8620, 23393)]