81265975

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 121420800

約数和(自身を除く): 40154825

約数列:

[1, 5, 7, 25, 29, 35, 67, 145, 175, 203, 239, 335, 469, 725, 1015, 1195, 1673, 1675, 1943, 2345, 5075, 5975, 6931, 8365, 9715, 11725, 13601, 16013, 34655, 41825, 48517, 48575, 68005, 80065, 112091, 173275, 242585, 340025, 400325, 464377, 560455, 1212925, 2321885, 2802275, 3250639, 11609425, 16253195, 81265975]

約数ペア:

[(1, 81265975), (5, 16253195), (7, 11609425), (25, 3250639), (29, 2802275), (35, 2321885), (67, 1212925), (145, 560455), (175, 464377), (203, 400325), (239, 340025), (335, 242585), (469, 173275), (725, 112091), (1015, 80065), (1195, 68005), (1673, 48575), (1675, 48517), (1943, 41825), (2345, 34655), (5075, 16013), (5975, 13601), (6931, 11725), (8365, 9715)]