81873075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{479}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 141419520

約数和(自身を除く): 59546445

約数列:

[1, 3, 5, 15, 25, 43, 53, 75, 129, 159, 215, 265, 479, 645, 795, 1075, 1325, 1437, 2279, 2395, 3225, 3975, 6837, 7185, 11395, 11975, 20597, 25387, 34185, 35925, 56975, 61791, 76161, 102985, 126935, 170925, 308955, 380805, 514925, 634675, 1091641, 1544775, 1904025, 3274923, 5458205, 16374615, 27291025, 81873075]

約数ペア:

[(1, 81873075), (3, 27291025), (5, 16374615), (15, 5458205), (25, 3274923), (43, 1904025), (53, 1544775), (75, 1091641), (129, 634675), (159, 514925), (215, 380805), (265, 308955), (479, 170925), (645, 126935), (795, 102985), (1075, 76161), (1325, 61791), (1437, 56975), (2279, 35925), (2395, 34185), (3225, 25387), (3975, 20597), (6837, 11975), (7185, 11395)]