71398725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1931}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 129366720

約数和(自身を除く): 57967995

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 725, 1275, 1479, 1931, 2175, 2465, 5793, 7395, 9655, 12325, 28965, 32827, 36975, 48275, 55999, 98481, 144825, 164135, 167997, 279995, 492405, 820675, 839985, 951983, 1399975, 2462025, 2855949, 4199925, 4759915, 14279745, 23799575, 71398725]

約数ペア:

[(1, 71398725), (3, 23799575), (5, 14279745), (15, 4759915), (17, 4199925), (25, 2855949), (29, 2462025), (51, 1399975), (75, 951983), (85, 839985), (87, 820675), (145, 492405), (255, 279995), (425, 167997), (435, 164135), (493, 144825), (725, 98481), (1275, 55999), (1479, 48275), (1931, 36975), (2175, 32827), (2465, 28965), (5793, 12325), (7395, 9655)]